See exactly where introductory reading exists, what remains unwritten, and when source checks and editorial work are due.
What the counts mean 1441 topics link to introductory reading, across 430 of 521 branches. A link does not establish complete coverage. Topics can appear in multiple domains, so domain totals overlap.
Assessed links: 219 topics have a focused guide, 125 have partial reading, and 14 have context while their own guide remains unwritten. 1097 older reading links still need a scope assessment. These are coverage labels, not evidence ratings.
25174 passages have citation or editorial-scope records. A source URL is not necessarily an independent study: a trial can produce several reports, and reviews can reuse trials. Known source relationships are shown on relevant articles; overlap has not been exhaustively mapped.
Independent systematic syntheses: 0. Completed qualified medical reviews: 0. Selected-study extractions: 20.
Coverage by health domain Open any domain to inspect every branch and reach its full topic list. “Without reading” means a missing atlas article, not an absence of scientific knowledge.
60 domains
Human biology and health foundations 12 of 52 topics have reading · 40 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Human biology and health foundations: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Cells and tissues 1 of 6 5 Human biology: cells, tissues, and organs Genetics and regulation 1 of 6 5 Human biology: cells, tissues, and organs Energy and metabolism 1 of 6 5 Energy balance: calories, metabolism, adaptation, and why predictions vary Regulation and resilience 4 of 6 2 Circadian misalignment: body-clock timing, sleep schedules and metabolic evidence Homeostasis and allostasis: how the body regulates, adapts, and changes Defense and repair 3 of 6 3 Adhesive bandages and dressings: wound contact, moisture and skin protection Antioxidants and oxidative stress: what the chemistry does—and does not—tell you Cuts and scrapes: cleaning, covering and recognizing wounds needing care Inflammation: useful defense, chronic disease, biomarkers, and treatment limits Body ecosystems 0 of 6 6 No linked reading Outcomes and normal variation 0 of 6 6 No linked reading Health models and biological variation 2 of 10 8 Circadian misalignment: body-clock timing, sleep schedules and metabolic evidence Homeostasis and allostasis: how the body regulates, adapts, and changes
Food and nutrition 132 of 178 topics have reading · 46 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Food and nutrition: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Energy and eating 4 of 6 2 Appetite and satiety: hunger, fullness, eating rate, and biological regulation Energy balance: calories, metabolism, adaptation, and why predictions vary Portion sizes: label servings, energy density and what experiments show Macronutrients 5 of 6 1 Carbohydrates: sugars, starches, fiber, food quality, and blood glucose Dietary fats: saturated, unsaturated, trans fats, and the importance of replacement Dietary fibre: types, foods, gut symptoms, and supplements High-protein food claims: daily-value rules, protein quality and country differences Protein needs Reduced-fat food labels: reference products, light wording and calorie comparisons Fat and carbohydrate types 6 of 6 0 Added sugars, free sugars, and total sugars: definitions, labels, and health evidence Carbohydrates: sugars, starches, fiber, food quality, and blood glucose Dietary fats: saturated, unsaturated, trans fats, and the importance of replacement Omega-3s: foods, fish oil, and prescription EPA Vitamins 5 of 6 1 Vitamin A: retinol, carotenoids, deficiency, pregnancy, and smoker supplement trials Vitamin C: foods, deficiency, colds, supplements, and intravenous claims Vitamin D: deficiency, testing, and supplementation Vitamin E: forms, foods, antioxidant claims, bleeding, and cancer trials Vitamin K: K1 and K2, food, warfarin, newborn prevention, bone studies, and calcification claims Minerals 7 of 8 1 Calcium: foods, carbonate and citrate, blood levels, bones, and fracture evidence Iodine: thyroid hormones, iodized salt, seaweed variability, pregnancy, and radiation medicines Iron deficiency: stores, anemia, ferritin, food, and treatment context Low-sodium labels: serving bases, reduced claims and salt terminology Magnesium: nutrient functions, foods, blood tests, preparations, deficiency, excess and supplement evidence Magnesium and sleep Salt, sodium, and potassium: labels, blood pressure, substitutes, and exceptions Selenium: foods, forms, excess, cancer prevention, and thyroid-marker evidence Zinc: foods, supplement forms, colds, copper balance, and clinical uses Individual B vitamins 8 of 8 0 Biotin: vitamin functions, foods, deficiency, inherited disorders, hair claims, uncertain benefits and laboratory safety Biotin supplements and laboratory test interference Folate: food folate, folic acid, methylfolate, pregnancy, MTHFR, and B12 Niacin (vitamin B3): forms, food, pellagra, flushing, cholesterol trials, and NAD-related claims Pantothenic acid (vitamin B5): food, adequate-intake estimates, deficiency, pantethine, acne research, and evidence limits Riboflavin (vitamin B2): food, deficiency, intake estimates, migraine research, and rare transporter disorders Thiamin (vitamin B1): food, deficiency, beriberi, Wernicke–Korsakoff disease, testing, and supplement claims Vitamin B12: foods, deficiency, blood tests, and replacement Vitamin B6: forms, foods, nerve toxicity, intake limits, and changing regulation Additional minerals and nutrient forms 8 of 10 2 Choline: nutrient forms, food, liver function, intake estimates, infant cognition research, and TMAO uncertainty Chromium: disputed essentiality, chromium III versus VI, old intake tables, diabetes guidance, weight-loss evidence, and supplement safety Copper: essential functions, food, deficiency, zinc interactions, testing, excess exposure, Menkes syndrome, and Wilson disease Iron deficiency: stores, anemia, ferritin, food, and treatment context Manganese: essential trace-mineral functions, food sources, uncertain supplement benefits, status testing and excess exposure Molybdenum: enzyme cofactors, food, rare deficiency, sulfite-oxidase disorders, newer type-A treatment, and supplement claims Phosphorus and phosphate: food, absorption, blood levels, kidney disease, additives, and intake uncertainty Vitamin D: deficiency, testing, and supplementation Food groups 9 of 10 1 Eggs: whites and yolks, labels, cholesterol, heart evidence, and food safety Fish and seafood Fruit Legumes and beans Nuts and seeds Red meat Seafood toxins and shellfish: harvest advisories, cooking limits and illness clues Vegetables Whole-grain labels: retained grain parts, ingredient quantities and misleading shortcuts Whole grains and refined grains: kernels, labels, fibre, and evidence Wholegrain bread Dietary patterns 8 of 8 0 Carnivore diet: animal-only variants, reported benefits and unanswered safety questions DASH diet: a food pattern, sodium reduction and blood-pressure evidence Healthy dietary patterns Ketogenic diets: ketosis, medical therapy and consumer keto Low-carbohydrate diets: definitions, replacements and comparative evidence Low-fat diets: total fat, fat quality and what replaces it Plant-based food labels: ingredients, nutrient comparisons and allergy boundaries Vegetarian and vegan diets: patterns, nutritional planning, and health evidence Meal timing 4 of 7 3 Breakfast and skipping breakfast: definitions, food quality, trials and population limits Intermittent fasting Late-night eating: clock time, sleep timing, controlled trials and shift-work limits Food properties 7 of 9 2 Fermented foods: what they are, live cultures, pickles, yogurt, gut-health evidence, and safety Food additives: functions, approval pathways, E numbers and changing evidence Food fortification: added nutrients, population programs and label interpretation Genetically modified foods: methods, traits, safety assessment and what labels mean Natural and artificial flavors: what is actually different? Non-GMO labels: voluntary claims, bioengineered disclosure and safety assessment Organic food: what the label means, pesticides, nutrition, and health evidence Ultra-processed foods Food specific questions 30 of 31 1 Antinutrients: different compounds, absorption studies and the whole diet Breakfast cereals Butter and margarine Cheese: natural and processed types, nutrients, lactose, heart studies, and storage Chicken and poultry Chocolate and cocoa: types, processing, health studies, metals, and milk allergy Coconut oil Dried fruit Honey: sugars, varieties, cough evidence, authenticity and infant safety Ice cream and frozen desserts Matcha: powdered tea, caffeine, product grades and the limits of brain-health claims MSG: umami flavor, naturally occurring glutamate, sodium, and sensitivity evidence Sweeteners: sugar substitutes, weight studies, safety, and uncertainty Olive oil: extra virgin, refined, cooking, and what the health evidence means Pasta Peanut butter and nut spreads Plant-based meat alternatives Potatoes Processed meat Red meat Rice Seed oils Snack bars Soya foods Spices: seasoning, culinary doses, concentrated products and food-safety limits Sugar alcohols: erythritol, xylitol, calories, gut effects, and heart-risk uncertainty Vinegar: food types, acidity, apple cider claims and evidence quality Wholegrain bread Yogurt: Greek, plant-based, live cultures, sugar, lactose, and health claims Cooking and access 9 of 10 1 Air fryers: hot-air cooking, oil uptake, acrylamide disagreement, a published critique, and food-safety checks Cultural dietary patterns: traditional foods, adaptation and what research labels mean Eating with practical constraints: time, kitchen access, storage and familiar foods Food preparation skills: practical competence, confidence and what classes can change Food waste: prevention, storage, date labels and safety before salvage Grilling and charring: cooking chemicals, human evidence and practical checks Ready meals and takeaways Sustainable diets: nutrition, environmental impacts, cost and cultural fit Practical eating 5 of 9 4 Cultural dietary patterns: traditional foods, adaptation and what research labels mean Food budgets: useful comparisons, realistic constraints and affordable meal choices Food insecurity: reliable access, severity, measurement and routes to support Gluten-free labels: thresholds, ingredient conditions and cross-contact Health claims on food labels: disease risk, normal function and evidence qualifiers High-protein food claims: daily-value rules, protein quality and country differences Low-sodium labels: serving bases, reduced claims and salt terminology Meal planning: flexible routines, food access and what the evidence can establish Nutrition labels: servings, sugars, Daily Values, ingredients, and package claims Reduced-fat food labels: reference products, light wording and calorie comparisons Sugar-free and no-added-sugar labels: total sugars, sweeteners and claim conditions Special dietary needs 4 of 9 5 Celiac disease and gluten: intestinal injury, testing, diet, and similar conditions Food allergy and intolerance: immune reactions, tests, labels, and safety Low-FODMAP diets: carbohydrates, IBS symptoms, reintroduction, and limits Meal replacements and nutrition drinks: partial meals, complete diets and clinical support Food structure processing and substitution 13 of 20 7 Appetite and satiety: hunger, fullness, eating rate, and biological regulation Cell-cultured foods and cultivated meat Fermented foods: what they are, live cultures, pickles, yogurt, gut-health evidence, and safety Food emulsifiers: what they do, common ingredients, and gut-health uncertainty Food fortification: added nutrients, population programs and label interpretation Food matrix: why structure and preparation matter alongside nutrients Frozen and canned foods: preservation, nutrients, ingredients, freezer burn, refrigeration, and everyday comparisons Histamine in foods and intolerance claims: mechanisms, tests and competing explanations Lectins in cooked foods: raw-bean hazards, preparation and exaggerated avoidance claims Low-FODMAP diets: carbohydrates, IBS symptoms, reintroduction, and limits Plant-based milks: soy, oat, almond, coconut, and how nutrition differs Ultra-processed foods Whole-grain labels: retained grain parts, ingredient quantities and misleading shortcuts Whole grains and refined grains: kernels, labels, fibre, and evidence Nutrition behavior and constraints 0 of 15 15 No linked reading
Hydration and beverages 33 of 57 topics have reading · 24 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Hydration and beverages: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Fluid balance 3 of 6 3 Hydration Hydration in older adults: low intake, clinical assessment, access to drinks, heat and individualized fluid needs Thirst and planned drinking: everyday water balance, exercise comparisons, heat-work guidance and overdrinking risk Water choices 8 of 11 3 Alkaline water: pH, mineral buffering, reflux studies, and hydration claims Bottled water: sources, treatment, labels, tap-water comparisons, and microplastics Copper water bottles: what leaches, what the evidence shows, and what to check Hydrogen water: dissolved gas, trial findings, and the limits of wellness claims Raw water: what untreated spring water leaves unanswered Remineralization and trace mineral drops: what are you adding back? Sparkling water: bubbles, minerals, flavored drinks, hydration, teeth, and bloating Structured and crystal water: what vortex devices, gemstones and shungite actually change Beverages 7 of 10 3 Caffeine: coffee, alertness, performance, and sleep Coffee: what is in the cup, caffeine amounts, filtering, sleep, and the health evidence Decaf coffee: remaining caffeine, how it is made, solvents, and health evidence Electrolyte drinks: minerals, sweat, carbohydrate, water, and oral rehydration Energy drinks: caffeine, sugar, extra ingredients, heart studies, and everyday questions Juice and smoothies Sports drinks: fluid, carbohydrate, electrolytes, everyday use, and medical rehydration Hydration contexts 3 of 6 3 Hydration in older adults: low intake, clinical assessment, access to drinks, heat and individualized fluid needs Oral rehydration solutions: glucose, salts, preparation and fluid replacement Hydration during pregnancy and lactation: total water, drinks, heat, milk-supply evidence and supervised clinical care Electrolytes 2 of 6 4 Oral rehydration solutions: glucose, salts, preparation and fluid replacement Salt, sodium, and potassium: labels, blood pressure, substitutes, and exceptions Beverage routines 2 of 6 4 Caffeine: coffee, alertness, performance, and sleep Specific fluid and beverage contexts 10 of 14 4 Alkaline water: pH, mineral buffering, reflux studies, and hydration claims Black tea Electrolyte drinks: minerals, sweat, carbohydrate, water, and oral rehydration Energy drinks: caffeine, sugar, extra ingredients, heart studies, and everyday questions Herbal teas Oral rehydration solutions: glucose, salts, preparation and fluid replacement Oxygenated water: what does extra oxygen in a drink actually do? Soft drinks Thirst and planned drinking: everyday water balance, exercise comparisons, heat-work guidance and overdrinking risk
Physical activity and fitness 47 of 89 topics have reading · 42 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Physical activity and fitness: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Daily activity 6 of 7 1 Ankle and wrist weights: load placement, walking studies and rehabilitation limits Dance for physical activity: choosing a class, fitness and limits of health claims Exercise snacks: short activity bouts, sitting breaks, fitness, and blood-glucose evidence Physical activity Sitting and sedentary time: activity breaks, standing, and health evidence Walking and step counts: intensity, realistic goals, health associations, and what trackers miss Aerobic training 4 of 6 2 Heart-rate training zones: device bands, threshold models and medication boundaries HIIT: hard intervals, sprint training, time savings, fitness evidence, and safety Zone 2 training Resistance training 6 of 6 0 Ankle and wrist weights: load placement, walking studies and rehabilitation limits Exercise progression: load, volume, frequency, recovery and goal-specific evidence Free weights versus machines: strength specificity and muscle-size comparisons Resistance bands: elastic load, color labels and training comparisons Strength training: what matters, what varies, and what is uncertain Suspension trainers: body angle, instability and trial boundaries Movement skills 2 of 7 5 Balance boards: ankle rehabilitation, exergames and outcome differences Balance training: static, dynamic and reactive skills, fall outcomes, and transfer Stretching and flexibility: range of motion, warm-ups, soreness, and evidence Suspension trainers: body angle, instability and trial boundaries Training organization 7 of 8 1 Concurrent training: combining endurance and strength, interference, and distinct outcomes Detraining and returning to exercise: what changes during a break Exercise adherence: practical constraints, support, monitoring and trial limits Recovery and overtraining: normal fatigue, overload, persistent underperformance, and uncertain tests Training to failure: set endings, repetitions in reserve, muscle growth, and fatigue Warm-up and cool-down: preparation, injury programs, soreness, stretching, and lactate myths Sport and performance 4 of 8 4 Cycling: commuting, indoor riding, fitness, and the meaning of health claims Hiking safety: trip planning, supplies, changing conditions and retreat Hot-tub safety: heat, germs, aerosols and suction hazards Lifejackets and boating safety: performance labels, fit, wear and maintenance Recreational-water illness: germs, chemicals and harmful blooms Running: pace, training exposure, health associations, and injury uncertainty Running-shoe features: cushioning, drop, control systems and plated-shoe evidence Swimming: strokes, aquatic exercise, training outcomes, and water safety Exercise needs 1 of 6 5 Adapted exercise: activity options, individual goals and condition-specific evidence Performance constraints 2 of 6 4 Relative energy deficiency in sport: under-fuelling, REDs, clinical assessment, and competing interpretations Warm-up and cool-down: preparation, injury programs, soreness, stretching, and lactate myths Training trends 6 of 7 1 Blood-flow-restriction training: cuffs, low loads, rehabilitation, and safety limits Electrical muscle stimulation: rehabilitation, whole-body training, and product claims Fasted exercise: meal timing, fuel use, performance, and limits of fat-loss claims Minimalist footwear: classification, walking adaptation and running-injury claims Vibration plates: platform parameters, strength and bone-density evidence Activity across ability and context 2 of 15 13 Adapted exercise: activity options, individual goals and condition-specific evidence Fasted exercise: meal timing, fuel use, performance, and limits of fat-loss claims Performance methods and recovery questions 8 of 15 7 Blood-flow-restriction training: cuffs, low loads, rehabilitation, and safety limits Concurrent training: combining endurance and strength, interference, and distinct outcomes Exercise snacks: short activity bouts, sitting breaks, fitness, and blood-glucose evidence Recovery and overtraining: normal fatigue, overload, persistent underperformance, and uncertain tests Rucking: loaded walking, energy cost, equipment, and limits of military evidence Weighted vests: added load, walking, bone findings, and body-composition claims
Sleep and circadian health 40 of 76 topics have reading · 36 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Sleep and circadian health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Sleep fundamentals 4 of 7 3 Sleep Sleep debt and recovery: short nights, catch-up sleep, different recovery measures and practical limits Sleep regularity: timing consistency, duration, measurement and health associations Circadian timing 3 of 6 3 Chronotype: morningness, eveningness, measurement and schedule mismatch Circadian misalignment: body-clock timing, sleep schedules and metabolic evidence Jet lag: body-clock mismatch, travel fatigue, timing and competing guidance Morning light routines: daily cues, biological timing and light-therapy boundaries Sleep routines 4 of 7 3 Alcohol and sleep: sedation, REM changes, breathing and recovery evidence Bedroom temperature: room air, bed microclimate, humidity and individual comfort Caffeine: coffee, alertness, performance, and sleep Naps: planned rest, sleep inertia, alertness and long-term health claims Sleep disorders 8 of 10 2 Idiopathic hypersomnia: sleepiness versus fatigue, difficult awakening, assessment, and treatment-study limits Insomnia and cognitive behavioral therapy for insomnia Narcolepsy: sleepiness, cataplexy, type 1 versus type 2, specialist testing, care, and orexin research Nightmares and night terrors: recall, responses, assessment and treatment evidence Restless legs syndrome: symptom pattern, iron, augmentation, and changing guidance Sleep apnea: obstruction, breathing signals, and assessment Sleep paralysis: sleep transitions, frightening experiences, recurrence and assessment Circadian and movement disorders 5 of 9 4 Bruxism: awake and sleep jaw activity, updated definitions, tooth damage, and treatment outcomes Nightmares and night terrors: recall, responses, assessment and treatment evidence REM sleep behavior disorder: dream enactment, safer nights and assessment Shift work sleep disorder: body-clock misalignment, sleepiness, assessment, adaptation and treatment limits Sleepwalking: incomplete NREM arousal, other nocturnal behaviors and safety Sleep assessment 2 of 6 4 Sleep apnea: obstruction, breathing signals, and assessment Sleep diaries: subjective estimates, useful fields and differences from devices Sleep interventions 4 of 7 3 Insomnia and cognitive behavioral therapy for insomnia Melatonin: body-clock timing, sleep, and product quality Mouth taping: oral closure, selected sleep-apnea studies and airway-dependent risks OTC sleep aids: sedating antihistamines, labels and the limits of short-term help Different schedules 4 of 7 3 Infant sleep safety: SIDS, suffocation, room sharing, bed-sharing evidence and monitor claims Jet lag: body-clock mismatch, travel fatigue, timing and competing guidance Sleep during pregnancy: changing comfort, side sleeping, insomnia and specific disorders Shift work sleep disorder: body-clock misalignment, sleepiness, assessment, adaptation and treatment limits Travel health: preparation, vaccines, and destination risks Social practical and environmental sleep 6 of 17 11 Bedding and sleep: fabrics, thermal properties, mattresses and comfort evidence Drowsy driving: warning signs, prevention and the limits of countermeasures Earplugs and eye masks: attenuation, light blocking, fit and evidence limits Jet lag: body-clock mismatch, travel fatigue, timing and competing guidance Noise and sleep: intermittent sounds, awakenings and masking evidence Sleep with newborn care: interruptions, shared support and persistent insomnia
Stress and emotional wellbeing 10 of 66 topics have reading · 56 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Stress and emotional wellbeing: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Stress experience 2 of 7 5 Burnout: workplace stress, exhaustion, measurement and organizational responses Caregiver stress: demands, resources, support and conflicting health findings Emotional skills 0 of 7 7 No linked reading Mind body practices 6 of 8 2 Breathwork: slow breathing, sighing, holds, stress outcomes, and safety Meditation: mindfulness, structured courses, apps, benefits, and difficult experiences Stress and mindfulness Tai chi and qigong: movement traditions, balance, symptoms, and study limits Yoga: practices, pain and anxiety studies, comparison groups, and adaptation Resilience and meaning 0 of 7 7 No linked reading Rest and restoration 0 of 7 7 No linked reading Stress measurements 2 of 6 4 Cortisol testing: daily rhythms, specimens, dynamic tests and misleading stress claims Heart rate variability: beat timing, metrics, wearable validation and stress claims Support and access 0 of 6 6 No linked reading Meaning identity and psychological experience 0 of 20 20 No linked reading
Relationships and sexual wellbeing 22 of 60 topics have reading · 38 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Relationships and sexual wellbeing: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Social connection 3 of 6 3 Social connection and loneliness Close relationships 4 of 8 4 Relationship boundaries: personal limits, expectations, consent, privacy and evidence gaps Relationship communication: listening, expressing needs, education evidence and safety limits Relationship conflict: disagreements, demand–withdraw patterns, counseling evidence and abuse distinctions Separation and divorce: health, children’s adjustment, family context and safe support Sexual wellbeing 3 of 7 4 Pain during sex: patterns, assessment, comfort and treatment evidence Sexual consent: affirmative agreement, changing choices, capacity, education and care Family life 3 of 6 3 Caregiver stress: demands, resources, support and conflicting health findings Parenting support: developmental stages, positive discipline, tested programmes and caregiver wellbeing Social participation 0 of 6 6 No linked reading Difficult life events 2 of 6 4 Grief: ordinary bereavement, prolonged grief, cultural context and treatment evidence Pregnancy loss: miscarriage, stillbirth, recurrent loss, assessment and support Safety in relationships 6 of 6 0 Coercive control: patterns of domination, constrained autonomy, health effects and safety-aware support Intimate partner violence: forms of abuse, health effects, confidential support and intervention limits Safeguarding: child and adult thresholds, forms of abuse, person-directed protection and jurisdiction-specific reporting Sexual violence: consent, forms of harm, time-sensitive clinical care, forensic choices and recovery evidence Connection inclusion and intimacy contexts 1 of 16 15 Sexual consent: affirmative agreement, changing choices, capacity, education and care
Habits work and digital life 8 of 58 topics have reading · 50 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Habits work and digital life: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Behavior change 1 of 6 5 Habits and behavior change Attention and time 2 of 6 4 Attention and distraction: alertness, selection, switching and ordinary lapses Procrastination: harmful delay, emotion regulation, bedtime patterns and treatment evidence Digital life 3 of 7 4 Digital wellbeing: useful connection, unwanted habits, measurement and digital breaks Screens and children: age, content, context, displacement, and what research can show Social media use: content, connection, problematic use, mental-health associations and digital breaks Work routines 0 of 7 7 No linked reading Everyday routines 0 of 6 6 No linked reading Motivation and support 1 of 6 5 Habits and behavior change Optimization culture 0 of 6 6 No linked reading Daily capacity and the digital environment 1 of 16 15 Blue light glasses: eye-strain claims, amber evening lenses and sleep evidence Screen-related eye strain: dryness, focusing demands and break-rule evidence
Alcohol nicotine and substance use 23 of 67 topics have reading · 44 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Alcohol nicotine and substance use: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Alcohol 4 of 7 3 Alcohol Alcohol and sleep: sedation, REM changes, breathing and recovery evidence Substance-use disorders: dependence, withdrawal, treatment, and recovery support Nicotine and tobacco 5 of 7 2 Nicotine pouches: mouth absorption, product strength and treatment distinctions Nicotine replacement therapy: medicinal formats, smoking abstinence and continuing nicotine Secondhand smoke: shared air, household prevention and bystander exposure Smokeless tobacco: snuff, dip, snus and product-specific risks Smoking cessation: treatment support, cigarette abstinence and continuing nicotine Tobacco and nicotine Vaping: nicotine aerosol, complete switching and the limits of cessation evidence Cannabis 5 of 7 2 Cannabidiol products: CBD labels, prescription treatment and safety uncertainty Cannabis and driving: impairment, confidence and the limits of THC measurements Cannabis edibles: delayed effects, THC amount and accidental ingestion Cannabis products: THC, CBD, routes, concentrates and medical-product boundaries Other substances 0 of 7 7 No linked reading Psychedelics 0 of 6 6 No linked reading Prevention and harm reduction 0 of 6 6 No linked reading Recovery 2 of 6 4 Substance-use disorders: dependence, withdrawal, treatment, and recovery support Behavioral addictions 0 of 6 6 No linked reading New delivery patterns and recovery context 8 of 16 8 Cannabis edibles: delayed effects, THC amount and accidental ingestion Cannabis products: THC, CBD, routes, concentrates and medical-product boundaries Heated tobacco products: tobacco aerosol and reduced-exposure claims Nicotine pouches: mouth absorption, product strength and treatment distinctions Secondhand smoke: shared air, household prevention and bystander exposure Vaping: nicotine aerosol, complete switching and the limits of cessation evidence
Hygiene and everyday self care 23 of 53 topics have reading · 30 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Hygiene and everyday self care: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Personal hygiene 5 of 7 2 Bathing: hygiene needs, skin barriers, infant safety and the eczema-frequency debate Dandruff and seborrheic dermatitis: flakes, inflammation, scalp care, and flares Dandruff shampoos: active ingredients, formulation labels and trial comparisons Dry shampoo: oil absorption, ordinary washing and aerosol recall boundaries Hand hygiene Nail-polish removers: solvent functions, nail experiments and exposure contexts Scalp oils: hair-fibre effects, growth claims and essential-oil reactions Soap and hand sanitizer: detergents, antibacterial claims, alcohol, skin comfort, and real-world evidence Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response Daily oral routines 4 of 7 3 Electric and manual toothbrushes: motion, coverage, timers and study outcomes Interdental cleaning: floss, small brushes, water flossers and choosing a fit Mouthwash: cosmetic rinses, fluoride, antiseptics and the oral microbiome Toothbrushing: manual and powered brushes, fluoride and interdental cleaning Toothpaste: fluoride, whitening, sensitivity, charcoal, and fluoride-free alternatives Body care 4 of 7 3 Blisters: friction injuries, protective coverings and prevention uncertainty Contact lens solutions: cleaning, disinfection, saline and peroxide systems Contact lenses: materials, wear schedules, cleaning systems and eye-infection risk Deodorants and antiperspirants: odor, sweat, aluminum, cancer evidence, and skin reactions Foot care and calluses: pressure, corns and limits of self-treatment Shaving and hair removal: cutting, pulling, dissolving, laser treatment and avoidable injuries Infection prevention 2 of 6 4 Disinfecting wipes: surface claims, wet contact and contamination transfer Food cross-contamination: raw-food juices, hands and kitchen equipment Hand hygiene Produce washing: water, clean equipment and the limits of rinsing Sun and outdoor care 3 of 6 3 Clothing and textiles: fibers, finishes, skin reactions and functional claims Insect-bite prevention: repellents, treated clothing, tick checks and product-specific age limits Sun protection and sunscreen Self care accessibility 0 of 6 6 No linked reading Hygiene tradeoffs and cultural contexts 6 of 15 9 Contact lens solutions: cleaning, disinfection, saline and peroxide systems Contact lenses: materials, wear schedules, cleaning systems and eye-infection risk Menstrual products: absorbent and collecting options, safe use and contaminant evidence Piercing aftercare: healing sites, jewelry materials, infection and conflicting cleaning advice Skin exfoliants: mechanical methods, acids and the limits of peel evidence Soap and hand sanitizer: detergents, antibacterial claims, alcohol, skin comfort, and real-world evidence Tattoos: injected pigment, infection, allergic reactions, removal and uncertain long-term risk
Heart circulation and vascular health 23 of 53 topics have reading · 30 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Heart circulation and vascular health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Function and risk 2 of 7 5 Cholesterol and blood lipids Resting heart rate: counting a pulse, interpreting a trend and knowing its limits Coronary disease 4 of 6 2 Coronary disease: arteries, angina, tests, stents, and evidence limits Emergencies and first-aid literacy Heart rhythm 3 of 6 3 Atrial fibrillation: rhythm, rate, stroke risk, tests, and follow-up Emergencies and first-aid literacy Palpitations: heartbeat awareness, rhythm categories and monitoring Structure and pump function 5 of 6 1 Cardiomyopathy: heart muscle phenotypes, inherited disease, assessment, recovery, and targeted treatment evidence Heart failure: pumping, filling, ejection fraction, tests, and care goals Heart valve disease: stenosis, regurgitation, prolapse, assessment, repair or replacement, and early-intervention uncertainty Myocarditis: heart muscle inflammation, causes, diagnostic uncertainty, treatment differences, and recovery Pericarditis: the heart’s surrounding sac, acute and recurrent inflammation, effusion, and treatment evidence Vascular conditions 6 of 6 0 Aortic aneurysm: abdominal and thoracic enlargement, screening, surveillance, and repair tradeoffs Aortic dissection: wall-layer separation, type A and B, emergency assessment, treatment, and long-term follow-up Peripheral artery disease: arterial narrowing, walking symptoms, limb-threatening disease, tests, exercise, and procedural evidence Varicose veins: venous reflux, symptoms, duplex assessment, compression uncertainty, and procedural evidence Venous blood clots: DVT, pulmonary embolism, tests, and treatment roles Blood pressure disorders 3 of 6 3 Blood pressure Orthostatic hypotension: standing-related pressure drops, timing patterns, causes, assessment, and management tradeoffs Pulmonary hypertension: five cause groups, functional classes, diagnostic tests, and treatment-specific evidence Prevention and treatment 0 of 6 6 No linked reading Special cardiovascular contexts 0 of 12 12 No linked reading
Lungs and breathing 13 of 55 topics have reading · 42 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Lungs and breathing: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Function and assessment 2 of 6 4 Lungs and breathing Airway disease 5 of 7 2 Asthma: airway inflammation, diagnosis, inhalers, and action plans COPD: emphysema, bronchitis, spirometry, rehabilitation, and targeted therapies Cystic fibrosis: CFTR function, diagnosis, multisystem care and treatment evidence Lung tissue disease 1 of 6 5 Interstitial lung disease: one umbrella, several different causes Acute disease 2 of 6 4 Acute bronchitis: a chest cold is not every kind of cough Pneumonia: causes, settings, tests, antibiotics, severity, and recovery Respiratory symptoms 2 of 6 4 Cough: dry and productive symptoms, duration and treatment limits Shortness of breath: breathing sensations, patterns, tests and urgent changes Respiratory care 1 of 6 5 Supplemental oxygen for wellness: medical need, performance experiments, and consumer claims Breathing claims 0 of 6 6 No linked reading Airway function and rehabilitation contexts 0 of 12 12 No linked reading
Metabolic health diabetes and body weight 17 of 54 topics have reading · 37 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Metabolic health diabetes and body weight: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Metabolic measurements 3 of 6 3 Body composition measurement: fat, lean tissue, smart scales, DXA and change detection HbA1c versus blood sugar: different measurements, different timescales Insulin resistance and metabolic health Diabetes 4 of 6 2 Gestational diabetes: pregnancy glucose changes, screening versus diagnosis, care goals, early evidence, and follow-up Insulin resistance and metabolic health Type 1 diabetes: insulin, monitoring, emergencies, and newer therapies Type 2 diabetes Acute metabolic problems 3 of 6 3 Dumping syndrome: early fluid shifts, late low glucose, postoperative anatomy, nutrition, and conflicting test guidance Type 1 diabetes: insulin, monitoring, emergencies, and newer therapies Type 2 diabetes Weight and composition 1 of 7 6 Obesity and weight health: BMI, adiposity, disease definitions, and care Weight management 1 of 6 5 GLP-1 and dual-incretin medicines Nutritional metabolism 2 of 6 4 Cholesterol and blood lipids Insulin resistance and metabolic health Popular metabolic claims 1 of 6 5 Continuous glucose monitoring: interstitial sensors, diabetes benefits and wellness uncertainty Emerging weight and glucose questions 2 of 12 10 Continuous glucose monitoring: interstitial sensors, diabetes benefits and wellness uncertainty Obesity and weight health: BMI, adiposity, disease definitions, and care
Hormones and endocrine health 29 of 61 topics have reading · 32 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Hormones and endocrine health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Thyroid 8 of 9 1 Hormones and thyroid health Hyperthyroidism: Graves disease, thyroiditis, tests, and different treatment goals Hypothyroidism: hormones, Hashimoto disease, blood tests, replacement, and T3 uncertainty Multiple endocrine neoplasia type 2: RET inheritance, MEN2A and MEN2B, medullary thyroid cancer, prevention, and targeted treatment Thyroid cancer: nodules, cell families, hormone tests, radioactive iodine, and screening Thyroid testing: TSH, free and total hormones, antibodies and misleading results Adrenal 6 of 7 1 Adrenal insufficiency: Addison’s disease, pituitary and steroid-related forms, tests, replacement, and adrenal-fatigue claims Congenital adrenal hyperplasia: inherited enzyme disorders, classic and nonclassic forms, screening, replacement, and newer treatment Cushing’s syndrome and disease: cortisol excess, different causes, testing, treatment, and recurrence Pheochromocytoma and paraganglioma: locations, catecholamines, inherited risk, testing, treatment, and newer drug evidence Primary aldosteronism: aldosterone and renin, hypertension screening, adrenal subtypes, treatment, and outcome limits Pituitary and growth 9 of 10 1 Acromegaly: growth hormone, IGF-1, diagnosis, complications, treatment goals, and newer oral-treatment evidence Arginine vasopressin deficiency: central diabetes insipidus, thirst and urine, copeptin testing, desmopressin, and fluid safety Growth-hormone deficiency: childhood growth, adult metabolic effects, diagnostic testing, replacement, and weekly-treatment evidence Hypophysitis: pituitary inflammation, autoimmune and treatment-related forms, hormone loss, imaging, and treatment evidence Hypopituitarism: missing pituitary signals, central thyroid and adrenal deficiency, water balance, and replacement interactions Multiple endocrine neoplasia type 1: inherited tumor risk, hormone effects, genetic testing, surveillance, and treatment uncertainty Pituitary tumors and incidentalomas: adenoma and PitNET names, size, hormone activity, vision, care, and surveillance Prolactinoma and hyperprolactinemia: hormone function, non-tumor causes, laboratory pitfalls, and treatment evidence Sheehan syndrome: postpartum pituitary injury, immediate and delayed symptoms, hormone assessment, replacement, and recovery questions Reproductive hormones 2 of 6 4 PCOS / PMOS: hormones, metabolic health, periods, and fertility Testosterone testing: total and free hormone, repeat samples, assay quality and interpretation Bone and mineral hormones 1 of 6 5 Parathyroid disorders: PTH and calcium, primary versus secondary disease, low-PTH states, and treatment evidence Hormone testing and treatment 0 of 6 6 No linked reading Hormone marketing 0 of 6 6 No linked reading Hormone interpretation and variation 3 of 11 8 Adrenal incidentalomas: unexpected masses, imaging and hormones, mild cortisol secretion, biopsy, and follow-up Prolactinoma and hyperprolactinemia: hormone function, non-tumor causes, laboratory pitfalls, and treatment evidence Testosterone testing: total and free hormone, repeat samples, assay quality and interpretation
Digestion gut liver and pancreas 42 of 68 topics have reading · 26 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Digestion gut liver and pancreas: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Digestion and microbiota 1 of 6 5 Digestion and the gut microbiome Upper digestive tract 8 of 8 0 Acid reflux and GERD: symptoms, tests, and treatment Barrett’s esophagus: metaplasia versus dysplasia, biopsy confirmation, surveillance, eradication therapy, and cancer-risk context Esophageal cancer: squamous and glandular types, Barrett changes, swallowing, and care Gastritis and gastropathy: lining inflammation, causes, atrophy, absorption, testing, and care H. pylori: stomach infection, ulcers, cancer risk, testing, eradication, and follow-up Hiatus hernia: sliding and paraesophageal types, reflux, investigation, surgery, and uncertainty about mesh Peptic ulcers: stomach and duodenal sores, causes, complications, testing, healing, and recurrence Swallowing problems: dysphagia, assessment and everyday decisions Intestines 7 of 7 0 Celiac disease and gluten: intestinal injury, testing, diet, and similar conditions Diverticular disease: pouches, inflammation, bleeding, diet, and care Inflammatory bowel disease: Crohn’s, ulcerative colitis, tests, and treatment goals Irritable bowel syndrome: symptoms, subtypes, and treatment evidence Microscopic colitis: watery diarrhea, normal-looking colonoscopy, biopsy subtypes, budesonide, relapse, and diet limits Motility and symptoms 6 of 7 1 Anti-diarrheal medicines: symptom relief, fluid replacement and label boundaries Bloating: fullness, visible distension, gas and competing treatment advice Constipation: stool patterns, causes, tests, and treatment evidence Diarrhea: short episodes, persistent changes and getting help Dumping syndrome: early fluid shifts, late low glucose, postoperative anatomy, nutrition, and conflicting test guidance Fecal incontinence: bowel leakage, assessment and treatment choices Gastroparesis: delayed stomach emptying, diagnosis, nutrition, medicines, procedures, and uncertain evidence Laxatives: bulk-forming, osmotic, stimulant and stool-softening medicines Travelers’ diarrhea: infection, severity, hydration and competing prevention evidence Liver 2 of 6 4 Cirrhosis: scarring, disease stage and prevention of complications Fatty liver disease: MASLD, MASH, scarring, tests, and newer treatment evidence Gallbladder and pancreas 4 of 7 3 Acute pancreatitis: sudden inflammation, causes, severity, tests, hospital care, feeding, and recurrence Cholecystitis: gallbladder inflammation, stones versus no stones, urgent care, drainage, and surgery evidence Chronic pancreatitis: scarring, variable symptoms, digestion, diabetes, enzymes, pain treatment, and follow-up Gallstones: bile, silent stones, blocked ducts, tests, and treatment Acute and structural problems 6 of 7 1 Anal fissure: a tear versus hemorrhoids, acute and chronic disease, stool care, medicines, surgery, and continence Appendicitis: the appendix, urgent symptoms, diagnosis, complications, surgery, antibiotics, and recurrence Bowel obstruction: mechanical blockage, ileus, pseudo-obstruction, causes, tests, urgency, and treatment evidence Hemorrhoids: internal and external types, bleeding, and treatment choices Hernias: locations, trapped tissue, strangulation, watchful waiting, repair, mesh, and population differences Short bowel syndrome: remaining anatomy, malabsorption, adaptation, intestinal failure, nutrition support, and teduglutide Gut interventions and claims 4 of 8 4 Digestive enzyme supplements: targeted uses, blends and pancreatic replacement Prebiotics: substrates, fibers, gut microbes and indication-specific benefits Probiotics SIBO: classical malabsorption, breath testing, IBS controversy, methanogen terminology, and treatment uncertainty Nutrition delivery and gastrointestinal complexity 5 of 13 8 Bile acid diarrhea: recycling, malabsorption, primary overproduction, tests, treatment evidence, and uncertainty Pancreatic enzyme insufficiency: digestion, EPI versus diabetes, assessment, replacement enzymes, and nutrition Gastroparesis: delayed stomach emptying, diagnosis, nutrition, medicines, procedures, and uncertain evidence Lactose intolerance: milk sugar, lactase, malabsorption versus symptoms, allergy, and keeping a nutritious diet Short bowel syndrome: remaining anatomy, malabsorption, adaptation, intestinal failure, nutrition support, and teduglutide
Kidneys urinary tract and continence 11 of 49 topics have reading · 38 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Kidneys urinary tract and continence: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Kidney function 2 of 7 5 Arginine vasopressin resistance: nephrogenic diabetes insipidus, inherited and acquired causes, kidney signaling, nutrition, and treatment evidence Kidneys and fluid balance Kidney disease 2 of 6 4 Acute kidney injury: sudden loss of kidney function Chronic kidney disease: chronicity, filtration, albumin, stages, and care Urinary tract 3 of 6 3 Blood in urine: visible bleeding, microscopic findings and assessment Kidney stones: types, tests, treatment, and prevention context Urinary tract infections: bladder and kidney infections, tests, and prevention evidence Continence and function 2 of 6 4 Urinary incontinence: leakage types, assessment, and treatment evidence Urinary retention: difficulty emptying the bladder Kidney care 0 of 6 6 No linked reading Urologic care 2 of 6 4 Benign prostate enlargement: urinary symptoms, size, cancer distinctions, care choices, and saw palmetto Urine tests: urinalysis, dipsticks, cultures and collecting the right specimen Advanced urinary and kidney contexts 0 of 12 12 No linked reading
Immunity allergy and autoimmune disease 15 of 61 topics have reading · 46 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Immunity allergy and autoimmune disease: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Immune function 2 of 6 4 Allergy and autoimmune disease Allergy 3 of 7 4 Allergic rhinitis: hay fever, triggers, medicines, and nasal rinses Anaphylaxis: recognizing danger, emergency plans and follow-up Antihistamines: generations, routes, drowsiness and OTC suitability Food allergy and intolerance: immune reactions, tests, labels, and safety Nasal corticosteroid sprays: inflammation control, delivery and product boundaries Autoimmune conditions 5 of 7 2 Giant-cell arteritis: urgent visual risk, artery involvement, diagnostic pathways, steroid-sparing trials, and newer guidance Rheumatoid arthritis: autoimmune inflammation, antibody tests, and treatment goals Sjögren disease: dryness, wider autoimmune effects, antibody limitations, dental care, and systemic-treatment evidence Systemic lupus erythematosus: autoimmune disease, organ patterns, antibody tests, treatment goals, and trial outcomes Systemic sclerosis: localized versus systemic scleroderma, skin patterns, vascular disease, lung outcomes, and care Immune deficiency 0 of 6 6 No linked reading Complex immune disorders 2 of 6 4 Hives: acute, chronic, spontaneous, inducible, and deeper swelling Assessment and treatment 1 of 6 5 Allergy and autoimmune disease Immune wellness claims 2 of 6 4 Anti-inflammatory diet claims: biological responses, scores and clinical outcomes Histamine in foods and intolerance claims: mechanisms, tests and competing explanations Therapy related immune conditions 0 of 6 6 No linked reading Immunity beyond simple strength claims 1 of 12 11 Histamine in foods and intolerance claims: mechanisms, tests and competing explanations
Blood blood formation and lymphatic health 11 of 53 topics have reading · 42 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Blood blood formation and lymphatic health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Blood biology 0 of 6 6 No linked reading Anemia 2 of 6 4 Anemia and oxygen transport Iron deficiency: stores, anemia, ferritin, food, and treatment context Vitamin B12: foods, deficiency, blood tests, and replacement Blood disorders 2 of 6 4 Sickle cell disease: hemoglobin subtypes, trait, acute complications, prevention, pain care and treatment evidence Thalassemia: alpha and beta forms, trait, transfusion dependence, iron overload, testing and evolving treatment evidence Coagulation 3 of 6 3 Bleeding disorders: platelets, clotting factors, von Willebrand disease, inherited and acquired causes, tests and care Lymphatic and splenic health 0 of 6 6 No linked reading Blood care 2 of 6 4 Anemia and oxygen transport Stem-cell and bone-marrow transplantation: cells, donors, recovery and outcomes Blood and lymphatic claims 1 of 6 5 Massage: techniques, symptom relief, sports recovery, lymphatic care, and limits Blood treatment and donation contexts 1 of 12 11 Iron deficiency: stores, anemia, ferritin, food, and treatment context
Brain nerves cognition and neurological disease 19 of 64 topics have reading · 45 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Brain nerves cognition and neurological disease: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Cognitive functions 1 of 6 5 Attention and distraction: alertness, selection, switching and ordinary lapses Brain conditions 3 of 6 3 Epilepsy: seizure types, assessment, treatment, and first-aid context Migraine: attacks, triggers, and treatment approaches Stroke and TIA: types, warning signs, treatment, and recovery Neurodegenerative disease 5 of 6 1 ALS: motor neurons, diagnosis, genetics, daily support, and what newer treatment results actually show Dementia and everyday brain health Huntington’s disease: movement, thinking, inheritance, testing choices, care, and disease-modification claims Parkinson’s disease: movement, non-motor symptoms, assessment, and care Nerve and neuromuscular conditions 6 of 8 2 Bell’s palsy: facial-nerve weakness, urgent alternatives, eye protection, early treatment, recovery, and antiviral uncertainty Guillain–Barré syndrome: acute immune nerve injury, urgent monitoring, recovery, treatment, and vaccine-risk context Multiple sclerosis: disease patterns, diagnosis, and distinct care goals Myasthenia gravis: fatigable weakness, ocular versus generalized disease, testing, crisis, and treatment evidence Peripheral neuropathy: nerve functions, causes, tests, and treatment goals Trigeminal neuralgia: shock-like facial pain, classification, MRI limits, medicines, and procedure trade-offs Autonomic and movement disorders 2 of 6 4 Dystonia: muscle contractions, body distributions, causes, focal injections, deep-brain stimulation, and evidence limits Essential tremor: action versus rest tremor, assessment, daily function, procedures, and the changed 2026 medication evidence Injury and structural disease 1 of 6 5 Concussion: symptoms, assessment, recovery, school, and activity Neurological assessment 0 of 6 6 No linked reading Brain health claims 0 of 6 6 No linked reading Sensory cognition and nervous system experiences 1 of 14 13 Concussion: symptoms, assessment, recovery, school, and activity
Mental health conditions and psychiatric care 33 of 68 topics have reading · 35 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Mental health conditions and psychiatric care: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Mood conditions 5 of 6 1 Bipolar disorder: episodes, diagnosis, treatment goals, and monitoring Depression: treatment options and their limits PMS and PMDD: cycle-linked symptoms, prospective tracking, premenstrual exacerbation, and treatment evidence Postpartum depression: baby blues, perinatal timing, screening, treatment and psychosis Seasonal affective disorder: patterns, treatment and next-winter planning Anxiety and related disorders 9 of 10 1 Agoraphobia: feared situations, avoidance and finding care Anxiety disorders: worry, panic, social fear, and treatment Body dysmorphic disorder: appearance concerns, assessment and care Health anxiety: illness worries, checking and reassurance, medical assessment and treatment evidence OCD: intrusive thoughts, compulsions, assessment, and treatment Selective mutism: understanding silence and supporting communication Specific phobias: triggers, treatment choices and everyday goals Trauma and stress disorders 2 of 6 4 Dissociative disorders: detachment, memory, identity and pathways to care PTSD: trauma responses, symptom patterns, and treatment approaches Psychosis and personality 2 of 6 4 Borderline personality disorder: patterns, assessment and treatment Schizophrenia: symptom patterns, diagnosis and ongoing support Eating disorders 5 of 6 1 Eating disorders: types, recognition, support, and recovery Neurodevelopmental conditions 2 of 6 4 ADHD: diagnosis, support, and treatment Autism: varied profiles, assessment, support goals, and evidence Psychiatric care 2 of 6 4 Mental health and finding support Noninvasive brain stimulation: magnetic and electrical methods, clinical treatment, and enhancement claims Acute risk and recovery 1 of 7 6 Psychosis: symptoms, assessment and care after a first episode Often omitted mental health questions 5 of 15 10 Body-focused repetitive behaviors: hair pulling, skin picking, habit reversal and conflicting treatment trials Dissociative disorders: detachment, memory, identity and pathways to care Health anxiety: illness worries, checking and reassurance, medical assessment and treatment evidence Hoarding disorder: difficulty discarding, safer homes and treatment Pregnancy loss: miscarriage, stillbirth, recurrent loss, assessment and support
Bones joints muscles and connective tissue 24 of 67 topics have reading · 43 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Bones joints muscles and connective tissue: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Bone 3 of 6 3 Bone health and osteoporosis Fractures: broken-bone terminology, open and stress injuries, alignment, healing, fixation, and rehabilitation evidence Osteoporosis: fractures, bone density, screening, and treatment trade-offs Joints 7 of 11 4 Bursitis: cushioning sacs, superficial and deep locations, infection, aspiration, and treatment uncertainty Gout: urate crystals, flares, blood tests, and long-term management Osteoarthritis: joint changes, pain, movement, and care Psoriatic arthritis: joints, entheses, dactylitis, skin and nails, diagnosis, treatment domains, and comparison evidence Reactive arthritis: infection triggers, wider symptoms, diagnostic questions, antibiotic evidence, and recovery Septic arthritis: urgent joint infection, native versus prosthetic joints, testing limits, drainage, and antibiotic evidence Sprains: ligament injury, grades, ankle patterns, fracture assessment, support, rehabilitation, and reinjury evidence Muscles and tendons 4 of 7 3 Muscle cramps: nighttime and exercise patterns, causes, treatment evidence and assessment Muscle strains: muscle and tendon injury, severity, avulsions, rehabilitation timing, PRP, and return-to-activity uncertainty Polymyalgia rheumatica: shoulder and hip stiffness, diagnostic mimics, steroid exposure, relapse, and newer evidence Tendinopathy: tendon pain, terminology, loading, tears, regional differences, and injection evidence Spine and posture 4 of 8 4 Axial spondyloarthritis: radiographic and non-radiographic disease, inflammatory back pain, testing limits, and care Low back pain: specific and nonspecific causes, duration, scans, rehabilitation, and changing guidance Neck pain: nonspecific pain, nerve-root and spinal-cord problems, whiplash, exercise, and manipulation uncertainty Sciatica: radiating nerve pain, disc herniation, assessment, medicines, injections, and surgery evidence Regional disorders 2 of 8 6 Carpal tunnel syndrome: median-nerve compression, symptom distribution, diagnostic guidance, splints, injections, and surgery Plantar fasciitis: fascia and heel spurs, first-step pain, rehabilitation, orthoses, injections, and evidence limits Connective tissue 1 of 6 5 Fibromyalgia: widespread pain, diagnosis, care, exercise evidence, and immune-mechanism uncertainty Assessment and care 1 of 7 6 Insoles and orthotics: cushioning, support, custom manufacture and evidence Function durability and injury recovery 2 of 14 12 Minimalist footwear: classification, walking adaptation and running-injury claims Running-shoe features: cushioning, drop, control systems and plated-shoe evidence Tendinopathy: tendon pain, terminology, loading, tears, regional differences, and injection evidence
Skin hair and nails 34 of 59 topics have reading · 25 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Skin hair and nails: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Skin function 2 of 7 5 Skin absorption: what gets through, what stays in skin, and why dose matters Skin exfoliants: mechanical methods, acids and the limits of peel evidence Inflammatory skin disease 5 of 6 1 Acne: what it is and how treatments differ Eczema and atopic dermatitis: types, skin barrier, treatments, and food claims Contact dermatitis: irritation, delayed allergy, patch testing, and product claims Psoriasis: types, immune mechanisms, treatment outcomes, and uncertainty Rosacea: skin and eye features, diagnosis, triggers, and treatment goals Topical antibiotics: first-aid ointments, infection prevention and contact reactions Infections and lesions 5 of 9 4 Head lice: live infestation versus nits, transmission, combing, treatment choices, and school guidance Ringworm: dermatophyte fungi, body-site names, lookalikes, antifungals, and emerging resistance Scabies: itch mites, ordinary and crusted infestation, contact care, treatment, and lingering itch Shingles: reactivation, rash, nerve pain, transmission, treatment, and vaccination Wart-removal products: salicylic acid, home freezing and clinical comparisons Hair and nails 4 of 6 2 Dandruff and seborrheic dermatitis: flakes, inflammation, scalp care, and flares Eyelash growth serums: prescription evidence, cosmetic ingredients and safety assessments Hair loss: shedding, patterns, causes, assessment, and treatment goals Scalp oils: hair-fibre effects, growth claims and essential-oil reactions Skin cancer and sun 4 of 6 2 Melanoma: pigment cells, changing marks, ABCDE limits, tumor depth, and treatment purposes Common non-melanoma skin cancers: basal and squamous cells, biopsy, and treatment choices Sunburn: ultraviolet injury, symptom care and protection limits Skin care interventions 4 of 6 2 Acne: what it is and how treatments differ Medicated acne products: active ingredients, formulations and measured outcomes Moisturizers: humectants, emollients, occlusion and skin-barrier claims Topical corticosteroids: potency, skin site, formulations and withdrawal uncertainty Topical retinoids: cosmetic retinol, acne medicines and photoaging evidence Skin claims 4 of 6 2 Clean beauty claims: natural, organic, free-from and allergy labels Collagen supplements: proteins, peptides, skin and joint evidence, and bias Cosmetics and ingredient safety: product categories, exposure, labels and preservation Skin-lightening products: ingredients, jurisdiction and treatment evidence Skin barrier appearance and product questions 6 of 13 7 Dandruff and seborrheic dermatitis: flakes, inflammation, scalp care, and flares Hair loss: shedding, patterns, causes, assessment, and treatment goals Nail-polish removers: solvent functions, nail experiments and exposure contexts Nail products: polish, gels, acrylate allergy, salon exposure and UV lamps Perfume and fragrance: ingredients, allergy, respiratory symptoms and labels Skin-lightening products: ingredients, jurisdiction and treatment evidence Tattoos: injected pigment, infection, allergic reactions, removal and uncertain long-term risk
Eyes and vision 29 of 48 topics have reading · 19 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Eyes and vision: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Visual function 1 of 6 5 Blue light glasses: eye-strain claims, amber evening lenses and sleep evidence Screen-related eye strain: dryness, focusing demands and break-rule evidence Common eye conditions 8 of 8 0 Amblyopia: visual development, lazy eye versus eye alignment, screening, patching, drops, and newer research Artificial tears: lubricant formulations, preservatives and trial comparisons Conjunctivitis: what pink eye is, infectious and allergic causes, antibiotics, hygiene, and warning signs Dry eye: tear film, causes, tests, care options, and supplement claims Eye redness drops: vasoconstrictors, rebound and assessment boundaries Reading glasses: ready-made readers, prescriptions and presbyopia evidence Refractive errors: myopia, hyperopia, astigmatism, presbyopia, correction, and myopia-control evidence Eye disease 6 of 6 0 Macular degeneration: central vision, dry and wet AMD, stages, supplements, injections, and evidence limits Cataracts: lens changes, types, symptoms, surgery, and cloudy vision afterward Diabetic retinopathy: vessel damage, macular edema, stages, screening, pregnancy, treatments, and outcome evidence Eye health and vision Glaucoma: optic-nerve damage, eye pressure, types, testing, and treatment goals Retinal detachment: tears, vitreous separation, three causes, repair options, and gas-bubble safety Uveitis: inflammation inside the eye, anatomical types, infectious causes, childhood screening, and treatment tradeoffs Eye injuries and emergencies 5 of 6 1 Contact lenses: materials, wear schedules, cleaning systems and eye-infection risk Cosmetic contact lenses: appearance changes, fitting and infection evidence Eye injuries and splashes: flushing, foreign objects, assessment and recovery Eye makeup and hygiene: application sites, contamination and ingredient risks Correction and care 4 of 6 2 Cataracts: lens changes, types, symptoms, surgery, and cloudy vision afterward Contact lens solutions: cleaning, disinfection, saline and peroxide systems Contact lenses: materials, wear schedules, cleaning systems and eye-infection risk Cosmetic contact lenses: appearance changes, fitting and infection evidence Eye health and vision Reading glasses: ready-made readers, prescriptions and presbyopia evidence Sunglasses: ultraviolet blocking, tint, polarization and protective limits Vision claims 4 of 6 2 Blue light glasses: eye-strain claims, amber evening lenses and sleep evidence Eye health supplements: assessed AMD indications, formulas and wellness claims Vision training claims: convergence therapy, reading outcomes and myopia exercises Vision across environment and ability 2 of 12 10 Blue light glasses: eye-strain claims, amber evening lenses and sleep evidence Screen-related eye strain: dryness, focusing demands and break-rule evidence
Hearing balance nose throat and voice 20 of 48 topics have reading · 28 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Hearing balance nose throat and voice: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Hearing 5 of 6 1 Ear infections: outer versus middle ear, fluid, antibiotics, and hearing Earwax: normal protection, impaction, removal methods and uncertain treatment comparisons Hearing and noise exposure Hearing loss: conductive and sensorineural types, sudden changes, testing, communication, devices, and cognition evidence Occupational noise and hearing: exposure measurement, ototoxic chemicals, prevention, hearing checks and evidence limits Tinnitus: sounds, assessment, distress, hearing aids, and uncertain treatment effects Balance and vestibular health 4 of 6 2 Benign paroxysmal positional vertigo (BPPV): examination, Epley evidence, alternative causes, and rehabilitation Ménière’s disease: hearing and vertigo, diagnostic categories, hydrops, treatment goals, and uncertain evidence Motion sickness: sensory signals, physical and visual motion, and evidence limits Motion-sickness medicines: antihistamine tablets, scopolamine patches and sedation Vertigo: motion sensations, BPPV, other causes, assessment, and rehabilitation Nose and sinuses 4 of 6 2 Decongestants: oral ingredients, nasal sprays, rebound and phenylephrine status Nosebleeds: first aid, recurring bleeding and treatment evidence Sinusitis: inflammation, acute versus chronic symptoms, antibiotics, and safe rinsing Smell and taste changes: loss, distorted odors, flavor and recovery evidence Throat and voice 1 of 6 5 Sore throat: pharyngitis, strep testing and antibiotic decisions ENT care 4 of 6 2 Hearing aids: styles, OTC eligibility, self-fitting evidence and communication limits Hearing and noise exposure Hearing tests: audiograms, speech, middle-ear measures and screening follow-up Nasal irrigation: saline types, delivery methods, symptom evidence and water safety Occupational noise and hearing: exposure measurement, ototoxic chemicals, prevention, hearing checks and evidence limits Sensory wellbeing 2 of 6 4 Hearing protection: earplug fit, earmuff seals, noise ratings and safe-listening limits Occupational noise and hearing: exposure measurement, ototoxic chemicals, prevention, hearing checks and evidence limits Smell and taste changes: loss, distorted odors, flavor and recovery evidence Communication voice and sensory access 0 of 13 13 No linked reading
Mouth teeth and oral health 33 of 52 topics have reading · 19 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Mouth teeth and oral health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Teeth and gums 6 of 6 0 Gum disease: gingivitis versus periodontitis, plaque, pockets, care, and whole-body evidence Oral health and tooth decay Tooth decay: caries, early mineral loss, cavities, fluoride evidence, and ongoing prevention Tooth sensitivity: exposed dentin, other pain causes, toothpaste evidence, and assessment Mouth disorders 3 of 6 3 Bad breath: halitosis, oral and other causes, masking versus control, and uncertain product rankings Dry mouth: xerostomia, saliva function, medicines, other causes, and treatment evidence limits Mouth ulcers: aphthous types, other causes, treatment uncertainty, and persistent-sore assessment Jaw and function 4 of 6 2 Bruxism: awake and sleep jaw activity, updated definitions, tooth damage, and treatment outcomes Orthodontic treatment: active braces and aligners, bite problems and retention Temporomandibular disorders: TMJ versus TMD, muscle and joint pain, assessment, and treatment uncertainty Dental prevention 6 of 7 1 Dental cleanings: scaling, polishing, periodontal treatment and maintenance Dental sealants: protective groove coatings, tooth eligibility and material comparisons Dental X-rays: bitewings, root images, panoramic views and selective 3-D scans Oral health and tooth decay Smokeless tobacco: snuff, dip, snus and product-specific risks Toothpaste: fluoride, whitening, sensitivity, charcoal, and fluoride-free alternatives Dental treatment 5 of 8 3 Dental fillings: repairing cavities, choosing materials and replacing restorations Dental implants: the fixture, connector, artificial tooth and long-term care Dental injuries and emergencies: knocked-out teeth, fractures, swelling and urgent care Orthodontic treatment: active braces and aligners, bite problems and retention Wisdom teeth: third molars, impaction, symptoms versus disease, removal, and surveillance Oral health contexts and claims 4 of 7 3 Child dental care: baby teeth, supervised routines, visits and age-specific prevention Dental fillings: repairing cavities, choosing materials and replacing restorations Oil pulling: what plaque studies show, what they do not, and practical limits Teeth whitening: stain types, bleaching versus cleaning, restorations, added light, and safety Oral systemic and treatment interpretation 5 of 12 7 Dental sealants: protective groove coatings, tooth eligibility and material comparisons Dry mouth: xerostomia, saliva function, medicines, other causes, and treatment evidence limits Mouth taping: oral closure, selected sleep-apnea studies and airway-dependent risks Orthodontic retainers: fixed wires, removable devices and maintaining alignment
Infectious diseases and infection control 30 of 65 topics have reading · 35 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Infectious diseases and infection control: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Pathogen classes 0 of 6 6 No linked reading Respiratory infections 5 of 7 2 Common cold: viral causes, overlapping symptoms, recovery, medicines, and antibiotic evidence COVID-19: transmission, tests, severe-risk context, prevention, and changing antiviral evidence Influenza: flu types, symptoms, tests, vaccines, and antiviral evidence Measles: airborne infection, complications, MMR protection, testing, and vitamin A limits Tuberculosis: infection versus disease, airborne spread, tests, BCG, and resistant-TB treatment Gastrointestinal infections 3 of 6 3 Backyard poultry and health: live-bird contact, eggs, biosecurity and bird-flu boundaries Hepatitis A: spread, recovery and prevention after exposure Norovirus: stomach bugs, spread, hydration, cleaning, and vaccine-study limits Pet food hygiene: cooked and raw categories, household contact and dated contamination evidence Reptile and amphibian pets: healthy carriers, aquarium water and household vulnerability Small mammal pets and health: rodent distinctions, cage contact, pregnancy and outbreak limits Bloodborne and sexual infections 9 of 9 0 Chlamydia: silent infection, anatomical-site tests, treatment evidence, partners, and repeat testing Genital herpes: HSV types, hidden transmission, test limits, recurrence, and antiviral suppression Gonorrhea: genital, throat and rectal infection, resistance, follow-up tests, and partial vaccine protection Hepatitis B: acute and chronic infection, blood tests, vaccination, suppression, and pregnancy Hepatitis C: bloodborne infection, antibody versus RNA, cure, reinfection, and liver follow-up HIV: infection versus AIDS, test windows, treatment, U=U, PrEP, and PEP HPV: virus types, persistence, warts, cancer prevention, screening, and positive results Syphilis: stages, silent infection, paired blood tests, pregnancy, cure, and follow-up Trichomoniasis: a protozoan STI, silent infection, test methods, treatment comparisons, and reinfection Vector borne and tropical disease 2 of 7 5 Lyme disease: tick exposure, changing rash, antibody tests, antibiotics, and persistent symptoms Tick removal: attached ticks, infection prevention and regional allergy advice Infection syndromes 1 of 7 6 Mononucleosis: glandular fever, EBV, antibody tests, fatigue, steroids, and spleen precautions Infection prevention 6 of 6 0 Antibiotics and resistance: what works, what becomes resistant, and stewardship Indoor air and home health Vaccines and infection prevention Workplace dust and respirators: dust types, source control, filters, fit testing, medical evaluation and equipment limits Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response Infection care 3 of 6 3 Antibiotics and resistance: what works, what becomes resistant, and stewardship Antifungal medicines: skin, scalp, nail and oral treatment are different contexts Sexual health and wellbeing Infections neglected tropical disease and surveillance 1 of 12 11 Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response
Cancer prevention diagnosis and survivorship 22 of 68 topics have reading · 46 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Cancer prevention diagnosis and survivorship: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Cancer foundations 1 of 6 5 Cancer: biology, diagnosis, and treatment Common solid cancers 6 of 6 0 Breast cancer: tissue types, receptors, stage and grade, screening, and treatment purposes Cervical cancer: HPV, precancer, screening and self-collection, diagnosis, and treatment purposes Colorectal cancer: colon and rectum, polyps, screening choices, newer blood tests, and treatment goals Lung cancer: cell types, risk beyond smoking, staging, tumor tests, and screening disagreements Common non-melanoma skin cancers: basal and squamous cells, biopsy, and treatment choices Prostate cancer: PSA, grade and stage, surveillance, treatment trade-offs, and long-term trial evidence Other solid cancers 9 of 10 1 Bladder cancer: urothelial cells, blood in urine, muscle invasion, BCG, and follow-up Endometrial cancer: the uterine lining, abnormal bleeding, biopsy, molecular findings, and care Esophageal cancer: squamous and glandular types, Barrett changes, swallowing, and care Kidney cancer: renal-cell types, drainage-system cancers, biopsy, kidney function, and care Liver cancer: primary tumors, metastases, liver function, AFP, and local treatments Ovarian cancer: tissue families, persistent symptoms, CA-125, screening, and treatment purposes Pancreatic cancer: ductal cancers, neuroendocrine tumors, cysts, markers, and care Stomach cancer: gastric types, H. pylori, endoscopy, biomarkers, and eating after treatment Thyroid cancer: nodules, cell families, hormone tests, radioactive iodine, and screening Blood and rare cancers 3 of 7 4 Leukemia: acute and chronic families, blood counts, molecular findings, observation, and residual disease Lymphoma: Hodgkin and non-Hodgkin families, tissue diagnosis, stage, observation, and treatment outcomes Multiple myeloma: plasma cells, MGUS, smoldering disease, protein tests, defining events, and care Prevention and detection 1 of 6 5 Screening: benefits, false results, and overdiagnosis Screening programmes and policy: invitation, complete pathways, benefits and harms Treatment 1 of 7 6 Cancer: biology, diagnosis, and treatment Living with cancer 1 of 7 6 Palliative care, quality of life, and caregiver support Disputed cancer claims 0 of 6 6 No linked reading Cancer burden and survivorship gaps 0 of 13 13 No linked reading
Genetic rare and developmental conditions 12 of 62 topics have reading · 50 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Genetic rare and developmental conditions: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Genetic condition classes 3 of 6 3 Genetic conditions and inheritance Metabolic and storage disease 0 of 6 6 No linked reading Developmental anomalies 0 of 6 6 No linked reading Rare disease groups 0 of 6 6 No linked reading Representative conditions 2 of 7 5 Cystic fibrosis: CFTR function, diagnosis, multisystem care and treatment evidence Down syndrome: chromosome types, individual development, lifelong health care and evidence gaps Genetic care 2 of 6 4 Newborn examination and screening: physical checks, blood spots, hearing, heart tests and follow-up Pregnancy and postpartum care Specialized interventions 2 of 6 4 Adolescent health and development Gene therapies: addition, editing, delivery, disease-specific evidence and follow-up Catalog expansion 0 of 6 6 No linked reading Rare disease interpretation and lived context 3 of 14 11 Genetic conditions and inheritance
Pain fatigue and complex chronic conditions 12 of 55 topics have reading · 43 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Pain fatigue and complex chronic conditions: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Pain types 5 of 6 1 Chronic pain: symptoms, function, and treatment evidence Cold and heat for pain: local comfort, injury context and skin safety Pain syndromes 1 of 6 5 Fibromyalgia: widespread pain, diagnosis, care, exercise evidence, and immune-mechanism uncertainty Fatigue and intolerance 3 of 6 3 ME/CFS, fatigue, and fibromyalgia Long COVID and post-exertional malaise Daily functioning 1 of 6 5 Caregiver stress: demands, resources, support and conflicting health findings Assessment 0 of 6 6 No linked reading Multimodal care 1 of 6 5 Pain-relief medicines: acetaminophen, NSAIDs, opioids and different formulations Explanatory claims 1 of 7 6 Indoor mold: damp buildings, testing, remediation and illness claims Energy function and symptom validity 1 of 13 12 Chronic pain: symptoms, function, and treatment evidence
Symptoms signs and health concerns 31 of 63 topics have reading · 32 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Symptoms signs and health concerns: every indexed branch Branch and topic list Topics with reading Without reading Available introductions General symptoms 4 of 6 2 Fever: temperature measurements, infection, age and warning signs Night sweats: overheating, drenching episodes and what the pattern can mean Swelling: tissue fluid, lymphatic drainage and patterns that need urgent care Unintentional weight loss: changes in intake, absorption and illness Heart and breathing symptoms 5 of 6 1 Chest pain: urgent discomfort, angina patterns and diagnostic limits Cough: dry and productive symptoms, duration and treatment limits Cough and cold medicines: symptom targets, combinations and pediatric boundaries Fainting: syncope, warning patterns, first aid and investigation Palpitations: heartbeat awareness, rhythm categories and monitoring Shortness of breath: breathing sensations, patterns, tests and urgent changes Digestive symptoms 5 of 6 1 Abdominal pain: location, changing patterns and limits of symptom-based reassurance Anti-diarrheal medicines: symptom relief, fluid replacement and label boundaries Constipation: stool patterns, causes, tests, and treatment evidence Diarrhea: short episodes, persistent changes and getting help Laxatives: bulk-forming, osmotic, stimulant and stool-softening medicines Nausea and vomiting: symptom patterns, dehydration and cause-specific care Rectal bleeding: appearance, urgency, tests and follow-up Travelers’ diarrhea: infection, severity, hydration and competing prevention evidence Neurological symptoms 5 of 7 2 Dizziness: spinning, faintness, timing, triggers and assessment Headaches: patterns, causes, diaries and assessment Numbness and tingling: temporary pressure, nerve patterns and urgent warning signs Tremor: rhythmic shaking, activation patterns and competing explanations Weakness: reduced power, fatigue and where the problem may arise Skin and sensory symptoms 4 of 6 2 Hair loss: shedding, patterns, causes, assessment, and treatment goals Itching: skin, nerve and systemic causes, with or without a rash Rash: skin changes, competing causes and when assessment is urgent Smell and taste changes: loss, distorted odors, flavor and recovery evidence Urinary and reproductive symptoms 3 of 7 4 Blood in urine: visible bleeding, microscopic findings and assessment Erectile dysfunction: erections, desire, underlying causes, treatment options, and enhancement claims Vaginal discharge: ordinary variation, changing symptoms, assessment and urgent contexts Functional and mental concerns 1 of 6 5 Anxiety disorders: worry, panic, social fear, and treatment Clinical signs and findings 2 of 6 4 Palpable lumps: skin growths, cysts, lymph nodes and what examination can establish Symptoms and laboratory results Symptoms across systems and urgency 2 of 13 11 Smell and taste changes: loss, distorted odors, flavor and recovery evidence Unexplained bruising: skin marks, bleeding patterns and when to seek assessment
Preconception fertility and family planning 16 of 48 topics have reading · 32 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Preconception fertility and family planning: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Preconception 0 of 6 6 No linked reading Fertility 5 of 6 1 Family planning, contraception, and fertility Female infertility: ovulation, tubes, ovarian reserve and treatment outcomes Male infertility: sperm production, obstruction, semen tests and supplement claims Menstrual health, perimenopause, and menopause Fertility interventions 2 of 6 4 Family planning, contraception, and fertility Contraception 4 of 6 2 Emergency contraception: pills, IUDs, timing and what the evidence can establish Fertility tracking: calendars, temperature, mucus, LH tests and contraception boundaries Hormonal contraception: combined methods, progestin-only options and choosing safely Permanent contraception: procedures, follow-up and future fertility Reproductive options 2 of 6 4 Abortion care: methods, assessment, completion and support Family planning, contraception, and fertility Fertility claims 1 of 6 5 Fertility tracking: calendars, temperature, mucus, LH tests and contraception boundaries Fertility ethics access and reproductive choices 2 of 12 10 Family planning, contraception, and fertility Fertility tracking: calendars, temperature, mucus, LH tests and contraception boundaries
Pregnancy birth postpartum and lactation 23 of 65 topics have reading · 42 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Pregnancy birth postpartum and lactation: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Routine pregnancy 2 of 7 5 Home pregnancy tests: using the kit and reading the result Prenatal care: appointments, screening choices, medicines and tailored support Fetal health 1 of 6 5 Pregnancy and postpartum care Pregnancy complications 4 of 6 2 Ectopic pregnancy: implantation sites, pregnancy of unknown location, urgent symptoms, follow-up and treatment evidence Gestational diabetes: pregnancy glucose changes, screening versus diagnosis, care goals, early evidence, and follow-up Hyperemesis gravidarum: severe pregnancy sickness, impaired intake, assessment, supportive care and uncertain treatment comparisons Preeclampsia: pregnancy hypertension categories, warning symptoms, placental tests, delivery trade-offs and postpartum follow-up Birth 4 of 6 2 Birth choices: setting, mode, timing, pain relief, support and changing plans Pregnancy loss 5 of 7 2 Pregnancy loss: miscarriage, stillbirth, recurrent loss, assessment and support Postpartum 1 of 6 5 Physical recovery after childbirth: bleeding, wounds, function and follow-up Pregnancy and postpartum care Feeding and lactation 3 of 7 4 Breastfeeding: milk production, feeding patterns, benefits and practical support Lactation problems: low supply, milk transfer, pain and the mastitis spectrum Maternal context 0 of 6 6 No linked reading Maternal function and social support 3 of 14 11 Infant formula: product types, preparation, storage, and what regulation means Lactation problems: low supply, milk transfer, pain and the mastitis spectrum Pregnancy and postpartum care
Infancy childhood and development 23 of 65 topics have reading · 42 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Infancy childhood and development: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Newborn health 5 of 7 2 Infant crying and colic: expected patterns, illness clues, feeding checks, safe coping and remedy evidence Neonatal jaundice: bilirubin, timing, measurement, treatment thresholds and evidence limits Newborn examination and screening: physical checks, blood spots, hearing, heart tests and follow-up Prematurity: gestational-age groups, neonatal care, trial findings and developmental follow-up Growth and nutrition 4 of 7 3 Complementary foods: readiness, textures, nutrients, and why recommendations differ Growth charts: percentiles, trajectories, prematurity, and what a change means Infant formula: product types, preparation, storage, and what regulation means Picky eating: ordinary selectivity, feeding disorders, growth, and practical approaches Development 2 of 6 4 Early childhood health and development Child preventive care 3 of 6 3 Child dental care: baby teeth, supervised routines, visits and age-specific prevention Early childhood health and development Lead: metal sources, dust and water, blood testing, reference values and prevention Common child illness 2 of 7 5 Childhood bladder control: daytime accidents and bedwetting Fever in children: temperature, age, comfort, and urgent warning signs Sleep and behavior 3 of 6 3 Child sleep routines: age, bedtime habits, tested methods, and caregiver wellbeing Infant sleep safety: SIDS, suffocation, room sharing, bed-sharing evidence and monitor claims Parenting support: developmental stages, positive discipline, tested programmes and caregiver wellbeing Safety 3 of 6 3 Child car seats: restraint stages, belt fit, installation, and crash history Choking prevention: food shape, small objects, swallowing hazards, and emergency recognition Drowning prevention: barriers, supervision, water competency and rescue Complex pediatric care 0 of 6 6 No linked reading Child health contextual blind spots 1 of 14 13 Child sleep routines: age, bedtime habits, tested methods, and caregiver wellbeing
Adolescence young adulthood and transitions 8 of 47 topics have reading · 39 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Adolescence young adulthood and transitions: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Puberty 2 of 6 4 Delayed puberty: self-limited delay, chronic illness, hormone deficiency, assessment, and treatment goals Precocious puberty: early development, central and peripheral causes, normal variants, assessment, and treatment evidence School and independence 0 of 6 6 No linked reading Adolescent wellbeing 1 of 6 5 Adolescent health and development Daily habits 0 of 6 6 No linked reading Sexual and reproductive health 2 of 6 4 Adolescent confidential care: private visits, consent, legal limits, records and evidence gaps Sexual consent: affirmative agreement, changing choices, capacity, education and care Young adult health 0 of 6 6 No linked reading Adolescent autonomy and social context 3 of 11 8 Adolescent confidential care: private visits, consent, legal limits, records and evidence gaps Energy drinks: caffeine, sugar, extra ingredients, heart studies, and everyday questions Social media use: content, connection, problematic use, mental-health associations and digital breaks
Women menstrual and gynecological health 20 of 49 topics have reading · 29 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Women menstrual and gynecological health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Menstrual health 6 of 6 0 Abnormal menstrual bleeding: patterns, heavy periods, testing and treatment choices Painful periods: primary versus secondary dysmenorrhea, prostaglandins, care options, and evidence limits Menstrual health, perimenopause, and menopause Missed and infrequent periods: pregnancy checks, assessment pathways and hormone signals PMS and PMDD: cycle-linked symptoms, prospective tracking, premenstrual exacerbation, and treatment evidence Gynecological conditions 7 of 8 1 Bacterial vaginosis: vaginal dysbiosis, diagnosis, recurrence, changing partner evidence, and pregnancy screening Endometriosis: symptoms, diagnosis, and care Ovarian cysts: functional versus other types, ultrasound features, observation, surgery, and follow-up differences PCOS / PMOS: hormones, metabolic health, periods, and fertility Uterine fibroids: location, bleeding and pressure, treatment goals, fertility, and comparative evidence Vaginal yeast infections: symptoms versus colonization, recurrent thrush, antifungals, and probiotic uncertainty Breast health 2 of 6 4 Breast cancer: tissue types, receptors, stage and grade, screening, and treatment purposes Breast symptoms: pain patterns, nipple discharge, swelling and assessment Midlife 3 of 6 3 Menopausal hormone therapy: systemic, local and bioidentical explained Menstrual health, perimenopause, and menopause Perimenopause: the transition, changing symptoms, diagnosis, treatment purposes, and recent hormone-label changes Sex related differences 0 of 6 6 No linked reading Gynecological care 0 of 6 6 No linked reading Historically underexamined reproductive questions 3 of 12 9 Endometriosis: symptoms, diagnosis, and care Menstrual health, perimenopause, and menopause PMS and PMDD: cycle-linked symptoms, prospective tracking, premenstrual exacerbation, and treatment evidence
Men prostate and andrological health 11 of 46 topics have reading · 35 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Men prostate and andrological health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Prostate 3 of 6 3 Benign prostate enlargement: urinary symptoms, size, cancer distinctions, care choices, and saw palmetto Prostate cancer: PSA, grade and stage, surveillance, treatment trade-offs, and long-term trial evidence Prostate health Testicular and penile health 1 of 6 5 Testicular cancer: germ-cell types, markers, surgery, surveillance, and fertility Sexual function 1 of 6 5 Erectile dysfunction: erections, desire, underlying causes, treatment options, and enhancement claims Hormones and reproduction 1 of 6 5 Male infertility: sperm production, obstruction, semen tests and supplement claims Prevention and care seeking 0 of 6 6 No linked reading Men's health claims 2 of 6 4 Benign prostate enlargement: urinary symptoms, size, cancer distinctions, care choices, and saw palmetto Male infertility: sperm production, obstruction, semen tests and supplement claims Men and care participation 3 of 11 8 Body dysmorphic disorder: appearance concerns, assessment and care Male infertility: sperm production, obstruction, semen tests and supplement claims Testicular cancer: germ-cell types, markers, surgery, surveillance, and fertility
Gender sexual diversity and inclusive health 9 of 41 topics have reading · 32 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Gender sexual diversity and inclusive health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Inclusive foundations 4 of 6 2 Intersex health: distinct variations, medical needs, consent and lifelong support Sex, gender, and inclusive health Care needs 2 of 6 4 Intersex health: distinct variations, medical needs, consent and lifelong support Transgender health: primary care, treatment choices, fertility and age-specific evidence Gender related care 1 of 6 5 Transgender health: primary care, treatment choices, fertility and age-specific evidence Access and safeguards 1 of 6 5 Health insurance: premiums, deductibles, networks and what a bill means Context across ages 0 of 6 6 No linked reading Inclusive care across ordinary health needs 1 of 11 10 Intersex health: distinct variations, medical needs, consent and lifelong support
Aging healthy longevity and end of life 19 of 56 topics have reading · 37 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Aging healthy longevity and end of life: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Aging trajectories 4 of 6 2 Frailty: reduced reserve, different measurement models and maintaining function Healthy aging and longevity Living with several conditions: treatment workload, competing goals and coordinated care Physical aging 1 of 6 5 Falls prevention: balance, home hazards, medication review and interpreting trial results Cognitive and social aging 2 of 6 4 Delirium: sudden changes in attention, quiet symptoms, care and recovery Dementia and everyday brain health Geriatric care 3 of 6 3 Geriatric care assessment: a coordinated plan beyond a screening score Polypharmacy and deprescribing: appropriate combinations, medication review and safe change Living arrangements 2 of 6 4 Caregiver stress: demands, resources, support and conflicting health findings Home and long-term care: services, settings, assessment, funding and quality Autonomy and protection 2 of 6 4 Advance directives: living wills, proxies, medical orders and planning outcomes Safeguarding: child and adult thresholds, forms of abuse, person-directed protection and jurisdiction-specific reporting End of life 1 of 7 6 Palliative care, quality of life, and caregiver support Caregiving frailty and changing capacity 5 of 14 9 Advance directives: living wills, proxies, medical orders and planning outcomes Caregiver stress: demands, resources, support and conflicting health findings Frailty: reduced reserve, different measurement models and maintaining function Living with several conditions: treatment workload, competing goals and coordinated care Palliative care, quality of life, and caregiver support Polypharmacy and deprescribing: appropriate combinations, medication review and safe change
Disability neurodiversity rehabilitation and access 18 of 69 topics have reading · 51 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Disability neurodiversity rehabilitation and access: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Function 0 of 6 6 No linked reading Activities and participation 0 of 9 9 No linked reading Disability contexts 0 of 6 6 No linked reading Neurodiversity 1 of 6 5 ADHD: diagnosis, support, and treatment Accommodations 2 of 6 4 Accessible healthcare: physical equipment, communication, service adjustments, supported decisions and evidence gaps Disability and access to health Workplace accommodations: disability, job barriers, individual adjustments, confidentiality and employment evidence Assistive support 3 of 6 3 Augmentative and alternative communication: tools, access, user control and evidence Insoles and orthotics: cushioning, support, custom manufacture and evidence Wheelchair seating and skills: fit, controls, training and participation Secondary health needs 4 of 7 3 Disability and secondary health needs: co-occurring conditions, preventive care, pain, skin and condition-specific assessment Pressure injuries: early skin changes, pressure relief and wound care Swallowing problems: dysphagia, assessment and everyday decisions Participation and rights 3 of 7 4 Accessible healthcare: physical equipment, communication, service adjustments, supported decisions and evidence gaps Caregiver stress: demands, resources, support and conflicting health findings Disability and access to health Environmental supports 1 of 6 5 Rehabilitation and everyday function Participation communication and autonomy 5 of 12 7 Augmentative and alternative communication: tools, access, user control and evidence Disability and access to health Disability and secondary health needs: co-occurring conditions, preventive care, pain, skin and condition-specific assessment Wheelchair seating and skills: fit, controls, training and participation
Food drinking water and microbiological safety 33 of 69 topics have reading · 36 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Food drinking water and microbiological safety: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Foodborne hazards 1 of 6 5 Produce washing: water, clean equipment and the limits of rinsing Raw flour and dough: contamination, edible products and home heat-treatment limits Food handling 12 of 12 0 Backyard poultry and health: live-bird contact, eggs, biosecurity and bird-flu boundaries Food and drinking-water safety Food cross-contamination: raw-food juices, hands and kitchen equipment Food freezing: thawing methods, refreezing decisions and freezer quality Food irradiation: what it is, radiation myths, nutrients, chemical changes, and labels Food refrigeration: measured cold storage, cooling and the limits of the fridge Food reheating: heating leftovers throughout and why storage still matters Food waste: prevention, storage, date labels and safety before salvage Frozen and canned foods: preservation, nutrients, ingredients, freezer burn, refrigeration, and everyday comparisons Home canning: tested processes, acidity, pressure and the limits of a seal Home food drying: process controls, jerky and dry storage Microwave cooking: how heating works, radiation myths, nutrients, uneven heating, containers, and plastic-particle research Pasteurization: why foods are heated, milk labels, homogenization, UHT, refrigeration, nutrients, and virus evidence Pet food hygiene: cooked and raw categories, household contact and dated contamination evidence Recreational-water illness: germs, chemicals and harmful blooms Safe cooking temperatures: internal measurements, food categories and time Sous vide and vacuum-sealed foods: cooking, cooling and package limits Risky food contexts 4 of 9 5 Fish and seafood Game meat: source, field handling, parasites and lead ammunition Raw milk: what it means, infection risks, nutrition, lactose claims, farm-allergy findings, and testing limits Wild mushrooms and foraging: identification limits, preparation hazards and poisoning Drinking water safety 2 of 6 4 Boil-water advisories: notice types, safe uses, filters and returning to normal Private wells: testing, interpreting results and treatment follow-up Water treatment 0 of 6 6 No linked reading Food contamination 3 of 6 3 Microplastics Mycotoxins: fungal toxins, major families, food testing, processing and diagnostic uncertainty PFAS: chemical families, food and water exposure, testing and evolving rules Food surveillance 2 of 6 4 Food fraud: authenticity, adulteration and what a test can establish Food recalls and illness reporting: identifying products, following notices and preserving useful information Package related questions 2 of 6 4 Dishwashing and sponges: detergent categories, drying and microbial evidence Food-container materials and reuse: intended use, heat, cleaning and migration evidence Glass and ceramic foodware: glazes, decoration, leaching, lead-free claims and heat limits Plastic food containers Food and water access interpretation 7 of 12 5 Food allergy and intolerance: immune reactions, tests, labels, and safety Food date labels: quality, safety, opened packages and country differences Gluten-free labels: thresholds, ingredient conditions and cross-contact Home food drying: process controls, jerky and dry storage Lead: metal sources, dust and water, blood testing, reference values and prevention Meal delivery food safety: receipt checks, temperature history and handling Private wells: testing, interpreting results and treatment follow-up Rainwater collection and cisterns: uses, contamination and household systems
Chemicals contaminants and toxicology 33 of 111 topics have reading · 78 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Chemicals contaminants and toxicology: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Risk fundamentals 3 of 7 4 Toxicology: hazard, exposure, and risk Metals and elements 5 of 8 3 Cadmium: food, smoking, occupational exposure, kidney accumulation and competing intake models Inorganic arsenic: chemical species, water and food, urine testing and threshold limits Lead: metal sources, dust and water, blood testing, reference values and prevention Mercury: chemical forms, seafood choices, spills, skin products and testing limits Persistent and plastic related chemicals 4 of 7 3 Bisphenol A and other bisphenols: food contact, replacement chemicals and competing assessments PFAS: chemical families, food and water exposure, testing and evolving rules Phthalates: plasticizers, food pathways, cosmetics and cumulative exposure Pesticides and solvents 4 of 8 4 Air fresheners: fragrance, diffusers, VOCs, ozone chemistry and what evidence can establish Benzene: air, fuel, product contamination and the importance of validated testing Formaldehyde: gas, formalin, household emissions, salon exposure and cancer evidence Glyphosate: active substance and formulations, residues, conflicting assessments and newer studies Natural and processing toxins 6 of 9 3 Aflatoxins: B1 and M1, food and feed, liver-cancer evidence, sampling and action levels Deoxynivalenol: vomitoxin, modified forms, wheat products and urinary exposure studies Fumonisins: corn contamination, B-type forms, intake guidance and human-evidence limits Ochratoxin A: storage fungi, coffee and cereals, kidney hazard and changing risk assessments Patulin: apple spoilage, juice processing, action levels and testing quality Zearalenone: a fungal estrogen, modified forms, grain exposure and biomarker limits Additional contaminant questions 3 of 12 9 3-MCPD: free and ester forms, sauces and refined oils, intake models and infant context Glycidyl esters: refining, glycidol, cancer-hazard evidence, exposure margins and infant nutrition Seafood toxins and shellfish: harvest advisories, cooking limits and illness clues Particles and materials 3 of 7 4 Asbestos in homes: suspected materials, renovation and exposure questions Indoor air and home health Microplastics Endpoints and vulnerable groups 0 of 7 7 No linked reading Exposure measurement 3 of 7 4 Hair mineral testing claims: measurement, exposure biomarkers and clinical interpretation Laboratory detection limits: non-detects, quantification, uncertainty and what a product test can tell you Lead: metal sources, dust and water, blood testing, reference values and prevention Risk management 0 of 7 7 No linked reading Toxicology claims 1 of 6 5 Detoxes and cleanses: what the claims mean, evidence, and risks Hazard documentation 0 of 9 9 No linked reading Additional substances and exposure interpretation 1 of 20 19 Biotin supplements and laboratory test interference
Air housing buildings and everyday environments 34 of 68 topics have reading · 34 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Air housing buildings and everyday environments: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Outdoor air 3 of 7 4 Air Quality Index and PM2.5 Indoor air and home health Wildfire smoke: particles, clean rooms and ventilation tradeoffs Indoor air 7 of 7 0 Carbon monoxide: sources, CO versus CO₂, alarm limits and urgent response Gas stoves: combustion, cooking particles and useful ventilation Indoor air and home health Indoor VOCs: gases, total readings and misleading low-VOC labels Radon: gas and decay particles, home tests, smoking, action levels and mitigation Secondhand smoke: shared air, household prevention and bystander exposure Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response Moisture and biologic exposures 7 of 8 1 Bedbugs: confirming an infestation, containing belongings and checking control Dust mites: allergens, bedding and why control results differ Household pest control: prevention, baits, sprays and cleanup Indoor mold: damp buildings, testing, remediation and illness claims Pet allergens: fur, proteins, air cleaning and breed claims Rodent baits: active ingredients, bait stations and secondary poisoning Housing and buildings 5 of 9 4 Asbestos in homes: suspected materials, renovation and exposure questions Building water hygiene: stagnation, showers and Legionella prevention Floodwater and home cleanup: safe entry, contaminated belongings and recovery decisions Lead: metal sources, dust and water, blood testing, reference values and prevention Social determinants of health: structural conditions, causal questions and policy evaluations Physical conditions 3 of 7 4 Everyday EMFs: electric cars, Wi-Fi and health Humidifiers: mist types, mineral dust, cleaning and realistic benefits Light at night: brightness, spectrum, timing and limits of screen-filter claims Neighborhoods 0 of 7 7 No linked reading Home interventions 7 of 8 1 Air purifiers: HEPA, gas filters, CADR, ozone, certifications and health-outcome uncertainty Carbon monoxide: sources, CO versus CO₂, alarm limits and urgent response Dehumidifiers: humidity, capacity, moisture control and limits of health claims Home ventilation: fresh air, exhaust, filters and carbon dioxide Humidifiers: mist types, mineral dust, cleaning and realistic benefits Radon: gas and decay particles, home tests, smoking, action levels and mitigation Smoke alarms and home fire escape: detection, maintenance and a workable plan Environmental access and restoration 2 of 15 13 Gas stoves: combustion, cooking particles and useful ventilation Wildfire smoke: particles, clean rooms and ventilation tradeoffs
Consumer products packaging and materials 64 of 94 topics have reading · 30 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Consumer products packaging and materials: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Food related products 9 of 11 2 Aluminum cookware: surfaces, food migration and what health evidence can tell us Bottled water: sources, treatment, labels, tap-water comparisons, and microplastics Cast iron cookware: seasoning, iron transfer and the limits of anemia claims Compostable packaging: labels, processing conditions, chemical migration and evidence limits Food-container materials and reuse: intended use, heat, cleaning and migration evidence Non-stick cookware Plastic food containers Water filters Personal care 8 of 10 2 Cosmetics and ingredient safety: product categories, exposure, labels and preservation Dandruff shampoos: active ingredients, formulation labels and trial comparisons Deodorants and antiperspirants: odor, sweat, aluminum, cancer evidence, and skin reactions Dry shampoo: oil absorption, ordinary washing and aerosol recall boundaries Eye makeup and hygiene: application sites, contamination and ingredient risks Eyelash growth serums: prescription evidence, cosmetic ingredients and safety assessments Hair care products: cleansing, conditioning, scalp treatment and breakage Hair conditioners: fibre lubrication, detangling and what repair evidence measures Hair dyes: colour categories, sensitivity testing and different kinds of risk Perfume and fragrance: ingredients, allergy, respiratory symptoms and labels Soap and hand sanitizer: detergents, antibacterial claims, alcohol, skin comfort, and real-world evidence Sun protection and sunscreen Toothpaste: fluoride, whitening, sensitivity, charcoal, and fluoride-free alternatives Household products 11 of 12 1 Air fresheners: fragrance, diffusers, VOCs, ozone chemistry and what evidence can establish Candles and incense: combustion, fragrance, soot, disease studies and fire safety Dishwashing and sponges: detergent categories, drying and microbial evidence Disinfecting wipes: surface claims, wet contact and contamination transfer Fabric softeners: conditioning, fragrance and product-specific fabric limits Household cleaners: detergents, disinfectants, bleach, green claims, and asthma evidence Household pest control: prevention, baits, sprays and cleanup Laser pointers and light toys: classes, labels and eye safety Laundry detergents: ingredients, fragrance, enzymes, skin reactions, and concentrated packets Lithium-ion battery safety: charging, damage, compatibility and disposal Microfiber cleaning cloths: mechanical removal, reuse and transfer evidence Mothballs: vapor pesticides, sealed storage and ingredient differences Portable space heaters: placement, power, fuel and overnight use Rodent baits: active ingredients, bait stations and secondary poisoning Total release foggers: whole-room aerosols, pest outcomes and exposure limits Materials and textiles 4 of 8 4 Clothing and textiles: fibers, finishes, skin reactions and functional claims Electric blankets: heated bedding, controls, washing and sleep evidence Glass and ceramic foodware: glazes, decoration, leaching, lead-free claims and heat limits Microfiber cleaning cloths: mechanical removal, reuse and transfer evidence Mothballs: vapor pesticides, sealed storage and ingredient differences Stainless steel cookware: alloys, metal migration and what risk evidence means Baby and family products 5 of 8 3 Baby food: purées, pouches, textures, contaminants, and safe storage Diapers: cloth and disposable systems, materials, moisture and evidence limits Infant formula: product types, preparation, storage, and what regulation means Menstrual products: absorbent and collecting options, safe use and contaminant evidence Pacifiers: design, feeding, sleep, age and dental evidence Wellness products 3 of 7 4 Dietary supplements Electrolyte drinks: minerals, sweat, carbohydrate, water, and oral rehydration Protein powders: whey, casein, plant proteins, and what a scoop can offer Product claims 5 of 8 3 Added sugars, free sugars, and total sugars: definitions, labels, and health evidence BPA-free and PFAS-free claims: chemical identity, substitutes, testing and the limits of a label Hypoallergenic claims: cosmetics, allergy tests and pet labels Natural food labels: agency meanings, processing claims and the health halo Sugar-free and no-added-sugar labels: total sugars, sweeteners and claim conditions Testing and scoring 3 of 8 5 Independent certification: product seals, laboratory accreditation and the scope of a claim Measurement uncertainty: estimates, error bars, traceability and decisions near a limit Regulatory and health-based thresholds: legal limits, exposure guidance and warning levels Representative sampling: batches, pooled samples, chain of custody and limits of a test Testing interpretation 7 of 8 1 Independent certification: product seals, laboratory accreditation and the scope of a claim Laboratory detection limits: non-detects, quantification, uncertainty and what a product test can tell you Measurement uncertainty: estimates, error bars, traceability and decisions near a limit Regulatory and health-based thresholds: legal limits, exposure guidance and warning levels Representative sampling: batches, pooled samples, chain of custody and limits of a test Product specific blind spots and claims 9 of 14 5 Air purifiers: HEPA, gas filters, CADR, ozone, certifications and health-outcome uncertainty Clothing and textiles: fibers, finishes, skin reactions and functional claims Compostable packaging: labels, processing conditions, chemical migration and evidence limits Essential oil diffusers: scent, emissions and realistic health claims Fabric softeners: conditioning, fragrance and product-specific fabric limits Food-container materials and reuse: intended use, heat, cleaning and migration evidence Hair straightening products: relaxers, smoothing treatments and distinct exposure risks Intimate care products: external washing, douching, lubrication and microbiome claims Water filter maintenance: replacement, cleaning and claim boundaries
Occupational workplace and ergonomic health 11 of 51 topics have reading · 40 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Occupational workplace and ergonomic health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Physical demands 1 of 6 5 Sitting and sedentary time: activity breaks, standing, and health evidence Chemical and biological hazards 2 of 6 4 Workplace dust and respirators: dust types, source control, filters, fit testing, medical evaluation and equipment limits Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response Physical hazards 1 of 6 5 Occupational noise and hearing: exposure measurement, ototoxic chemicals, prevention, hearing checks and evidence limits Workplace hazards and prevention Job organization 2 of 6 4 Burnout: workplace stress, exhaustion, measurement and organizational responses Shift work sleep disorder: body-clock misalignment, sleepiness, assessment, adaptation and treatment limits Occupations and contexts 0 of 7 7 No linked reading Prevention and rights 4 of 7 3 Occupational health hazards: exposure, risk assessment, prevention, worker participation and health surveillance Workplace hazards and prevention Workplace dust and respirators: dust types, source control, filters, fit testing, medical evaluation and equipment limits Employment vulnerability and workplace support 1 of 13 12 Workplace accommodations: disability, job barriers, individual adjustments, confidentiality and employment evidence
Travel climate disasters and planetary health 13 of 51 topics have reading · 38 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Travel climate disasters and planetary health: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Travel health 5 of 7 2 Jet lag: body-clock mismatch, travel fatigue, timing and competing guidance Motion-sickness medicines: antihistamine tablets, scopolamine patches and sedation Travel health: preparation, vaccines, and destination risks Travelers’ diarrhea: infection, severity, hydration and competing prevention evidence Altitude and diving 3 of 6 3 Air travel and ear pressure: equalization, barotrauma and product evidence Altitude sickness: acclimatization, illness types and descent Heat and health Travel health: preparation, vaccines, and destination risks Climate 2 of 7 5 Cold-water immersion Heat and health Disasters 1 of 7 6 Floodwater and home cleanup: safe entry, contaminated belongings and recovery decisions One Health 1 of 6 5 Backyard poultry and health: live-bird contact, eggs, biosecurity and bird-flu boundaries Pet food hygiene: cooked and raw categories, household contact and dated contamination evidence Reptile and amphibian pets: healthy carriers, aquarium water and household vulnerability Small mammal pets and health: rodent distinctions, cage contact, pregnancy and outbreak limits Migration and global context 0 of 6 6 No linked reading Global mobility and emerging environments 1 of 12 11 Travel health: preparation, vaccines, and destination risks
Injury violence emergency care and first aid 21 of 55 topics have reading · 34 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Injury violence emergency care and first aid: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Injury types 2 of 6 4 Adhesive bandages and dressings: wound contact, moisture and skin protection Blisters: friction injuries, protective coverings and prevention uncertainty Cuts and scrapes: cleaning, covering and recognizing wounds needing care Electric blankets: heated bedding, controls, washing and sleep evidence Heating pads: heat delivery, short-term pain evidence and burn precautions Hot-water bottles: sealed water, electrical alternatives and burn evidence Minor burns: injury depth, cooling, aftercare and escalation Topical antibiotics: first-aid ointments, infection prevention and contact reactions Poisoning and envenomation 6 of 8 2 Animal bites: wound injury, infection, tetanus and rabies assessment Carbon monoxide: sources, CO versus CO₂, alarm limits and urgent response Food poisoning: infections, toxins, symptoms, hydration and preventing spread Insect bite and sting care: local reactions, infection, visible stingers and when to seek help Snakebites: suspected bites, venom effects and regional first aid Accidental injury prevention 4 of 7 3 Drowning prevention: barriers, supervision, water competency and rescue Falls prevention: balance, home hazards, medication review and interpreting trial results Hot-tub safety: heat, germs, aerosols and suction hazards Lifejackets and boating safety: performance labels, fit, wear and maintenance Medicine expiry and disposal: stability, opened-product limits and local return rules Safe storage of medicines: access prevention, product stability and emergency planning Smoke alarms and home fire escape: detection, maintenance and a workable plan Emergency response 2 of 6 4 Emergencies and first-aid literacy Severe bleeding first aid: recognition, direct pressure and trained bleeding control Acute environmental injury 1 of 6 5 Lightning safety: shelter, timing, exposure and emergency response Violence and self injury 4 of 7 3 Intimate partner violence: forms of abuse, health effects, confidential support and intervention limits Safeguarding: child and adult thresholds, forms of abuse, person-directed protection and jurisdiction-specific reporting Sexual violence: consent, forms of harm, time-sensitive clinical care, forensic choices and recovery evidence Recovery and preparedness 1 of 6 5 Hiking safety: trip planning, supplies, changing conditions and retreat Forensic justice and community safety 3 of 12 9 Falls prevention: balance, home hazards, medication review and interpreting trial results Safeguarding: child and adult thresholds, forms of abuse, person-directed protection and jurisdiction-specific reporting
Prevention screening and health maintenance 9 of 56 topics have reading · 47 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Prevention screening and health maintenance: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Prevention principles 0 of 6 6 No linked reading Cardiometabolic prevention 1 of 6 5 Smoking cessation: treatment support, cigarette abstinence and continuing nicotine Cancer prevention 1 of 6 5 Lung cancer: cell types, risk beyond smoking, staging, tumor tests, and screening disagreements Other screening 1 of 6 5 Osteoporosis: fractures, bone density, screening, and treatment trade-offs Immunization 1 of 6 5 Travel health: preparation, vaccines, and destination risks Screening tradeoffs 2 of 8 6 Screening: benefits, false results, and overdiagnosis Screening programmes and policy: invitation, complete pathways, benefits and harms Life course prevention 1 of 6 5 Disability and secondary health needs: co-occurring conditions, preventive care, pain, skin and condition-specific assessment Prevention individualized implementation 2 of 12 10 Health equity: fairness, need, access and measurable differences Shared decision making: evidence, personal priorities and what decision aids can do
Symptoms diagnostics biomarkers and laboratory tests 24 of 72 topics have reading · 48 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Symptoms diagnostics biomarkers and laboratory tests: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Test interpretation 2 of 10 8 Positive, negative and unremarkable: medical report language Understanding abnormal laboratory results Routine blood tests 5 of 6 1 Anemia and oxygen transport Cholesterol and blood lipids Kidney tests: creatinine, estimated filtration, urine albumin and why results differ Liver tests: enzymes, bilirubin, proteins and what a liver panel can tell you Thyroid testing: TSH, free and total hormones, antibodies and misleading results Metabolic and cardiovascular markers 1 of 7 6 HbA1c versus blood sugar: different measurements, different timescales Nutrition and hormone tests 3 of 6 3 Cortisol testing: daily rhythms, specimens, dynamic tests and misleading stress claims Vitamin B12: foods, deficiency, blood tests, and replacement Vitamin D: deficiency, testing, and supplementation Biological samples 3 of 6 3 Saliva tests: specimen choice, validated uses, cortisol timing and wellness claims Stool tests: hidden blood, inflammation, digestive enzymes and targeted infection testing Urine tests: urinalysis, dipsticks, cultures and collecting the right specimen Imaging and physiological tests 3 of 8 5 Dental X-rays: bitewings, root images, panoramic views and selective 3-D scans Exercise stress tests: ECG, imaging, test adequacy and why screening is different Pulmonary function tests: airflow, lung volumes, gas transfer and technical quality Commercial test claims 4 of 7 3 Biological age tests: clock families, risk prediction, repeatability and longevity claims Food sensitivity panels: IgG, true allergy tests, intolerance and emerging IBS research Microbiome tests: sequencing, relative abundance, reproducibility and clinical utility Whole-body MRI: screening, incidental findings, and who the evidence concerns Testing process 2 of 9 7 Laboratory sample quality: haemolysis, clots, contamination and recollection Measurement validity and specimen effects 1 of 13 12 Laboratory sample quality: haemolysis, clots, contamination and recollection
Wearables home monitoring and self experimentation 11 of 58 topics have reading · 47 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Wearables home monitoring and self experimentation: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Consumer tracking 3 of 7 4 Heart-rate training zones: device bands, threshold models and medication boundaries Heart rate variability: beat timing, metrics, wearable validation and stress claims Home monitoring 4 of 6 2 Blood glucose meters: finger-stick measurements, strips, error and diagnostic limits Continuous glucose monitoring: interstitial sensors, diabetes benefits and wellness uncertainty Home blood pressure: cuffs, technique, repeated readings and treatment evidence Pulse oximetry: saturation estimates, hidden hypoxemia, skin pigmentation and home monitoring Wearables and home measurements Fitness and body measures 2 of 6 4 Body composition measurement: fat, lean tissue, smart scales, DXA and change detection VO2 max: oxygen use, watch estimates, laboratory testing and health-risk interpretation Personal experiments 0 of 7 7 No linked reading Data interpretation 1 of 6 5 Randomized trials: assignment, analysis targets and application to care Technology governance 0 of 7 7 No linked reading Behavior effects 0 of 6 6 No linked reading Sensors algorithms and real world limitations 1 of 13 12 Fertility tracking: calendars, temperature, mucus, LH tests and contraception boundaries
Genetics omics and personalized health 4 of 47 topics have reading · 43 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Vitamins minerals botanicals and dietary supplements 106 of 182 topics have reading · 76 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Vitamins minerals botanicals and dietary supplements: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Vitamin and mineral products 7 of 8 1 Calcium: foods, carbonate and citrate, blood levels, bones, and fracture evidence Folate: food folate, folic acid, methylfolate, pregnancy, MTHFR, and B12 Magnesium: nutrient functions, foods, blood tests, preparations, deficiency, excess and supplement evidence Magnesium and sleep Multivitamins: formulas, nutrient gaps, cognition, biological-age clocks, and lifespan claims Vitamin B12: foods, deficiency, blood tests, and replacement Vitamin D: deficiency, testing, and supplementation Zinc: foods, supplement forms, colds, copper balance, and clinical uses Performance and nutrition 10 of 11 1 BCAAs and EAAs: amino-acid categories, synthesis, soreness and longer-term outcomes Beetroot supplements: food forms, nitrate content, blood pressure, exercise outcomes and nitrite hazards Beta-alanine: carnosine and buffering, exercise capacity versus performance, male and female evidence, tingling, and safety limits Caffeine: coffee, alertness, performance, and sleep Carnitine: endogenous production and forms, prescription deficiency treatment, modest weight findings, exercise intensity, cardiovascular evidence, and TMAO Citrulline: amino-acid biology, malate ratios, resistance versus endurance findings, vascular markers and safety limits Creatine Pre-workout supplements: ingredients, tingling, pumps, performance and uncertainty Protein needs Lipids and metabolic products 7 of 9 2 Alpha-lipoic acid: thioctic acid, diabetic neuropathy, short versus long trials, primary endpoints, weight claims, and autoimmune hypoglycemia Berberine: what it is, weight-loss uncertainty, newer fat-imaging and blend trials, diabetes-study boundaries, drug interactions, and regulatory review Coenzyme Q10: mitochondrial function, ubiquinone, heart-failure signals, conflicting statin-pain reviews, Parkinson’s trials, and interactions Inositol: myo and D-chiro forms, PCOS review disagreement, fertility outcomes, pregnancy prevention trials, mood claims, and uncertainty Omega-3s: foods, fish oil, and prescription EPA Plant sterols and stanols: cholesterol absorption, foods versus capsules, lipid evidence versus clinical events, genetic findings, sitosterolemia, and health-claim scope Psyllium: husk and gel-forming fiber, constipation and IBS evidence, lipid and glucose findings, adequate fluid, swallowing warnings, and medicine timing Sleep and mood products 7 of 8 1 5-HTP: serotonin precursor versus tryptophan, weak depression evidence, a small sleep trial, interaction warnings, and disputed historical contamination findings GABA supplements: oral preparations, brain access and mixed sleep or stress findings Glycine: amino-acid function, small sleep studies, daytime tests, the 2026 collagen review, GlyNAC attribution, and longevity uncertainty L-theanine: tea versus isolated supplements, preliminary sleep findings, stress and attention studies, anxiety trials, and claim boundaries Melatonin: body-clock timing, sleep, and product quality St John’s wort: depression evidence, extract differences, conflicting trials, enzyme induction, serious medicine interactions, and long-term uncertainty Supplement and medicine interactions Valerian: root preparations, subjective versus measured sleep, conflicting trials, European medicinal categories, sedation, and safety gaps Botanicals and fungi 9 of 10 1 Adaptogens: plants, stress-support claims, traditional use and clinical evidence Ashwagandha: preparations, stress and sleep research, interactions, and liver alerts Echinacea: species, roots versus aerial parts, cold prevention versus treatment, differing study results, allergy, and product-specific evidence Ginkgo: leaf extracts versus seeds, dementia prevention versus symptoms, the 2026 review, European medicinal scope, and bleeding precautions Ginseng: Asian versus American species, red versus white preparations, fatigue and sexual-function evidence, traditional use, and safety Milk thistle: silymarin mixtures, liver claims, hepatitis C and NASH trials, product quality, and uncertain benefit Rhodiola: plant identity, adaptogen claims, fatigue, exercise, depression trials, traditional registration, and safety uncertainty Saffron: culinary stigmas versus extracts, low mood and clinical depression, conflicting outcome scales, newer trials, and safety limits Turmeric and curcumin: food, extracts, absorption, clinical outcomes, and liver risk Botanical catalog A 6 of 12 6 Aloe vera: inner gel versus latex and whole leaf, topical versus oral evidence, burn and acne comparisons, animal findings, and laxative regulation Bitter orange: p-synephrine, weight-loss claims and product-specific safety uncertainty Black cohosh: plant identity, menopausal symptom evidence, extract and blend differences, conflicting findings, and liver-safety reports Boswellia: gum resin versus frankincense preparations, disputed knee-arthritis reviews, newer trials, combination products, and safety limits Butterbur: extract-specific findings, liver concerns and product uncertainty Ginseng: Asian versus American species, red versus white preparations, fatigue and sexual-function evidence, traditional use, and safety Botanical catalog B 5 of 12 7 Chasteberry: Vitex fruit extracts, PMS research and hormonal claims Cinnamon supplements: product identity, glucose findings and safety limits Cranberry: fruit versus supplements, proanthocyanidins, UTI prevention versus treatment, population differences, and qualified health claims Elderberry: berry preparations, cold prevention versus duration, conflicting influenza trials, cytokine claims, raw-plant toxicity, and COVID marketing Fenugreek: seeds, extracts and milk-supply or glucose claims Botanical catalog C 5 of 12 7 Garlic: food versus extracts, conflicting cholesterol findings, blood-pressure endpoints, gastric-cancer incidence versus mortality, and bleeding or skin risks Ginger: rhizome versus extracts, nausea versus vomiting, pregnancy evidence, chemotherapy trial disagreements, and two-species osteoarthritis research Green tea: tea versus concentrated extracts, catechins and EGCG, weight and cancer claims, liver-injury evidence, and a nadolol interaction Kava: traditional drinks versus extracts, conflicting generalized-anxiety trials, rare liver injury, case-report limits, and sedative interactions Licorice root: glycyrrhizin versus DGL, blood-pressure and potassium risks, a small dyspepsia trial, and a newly revised European assessment Botanical catalog D 4 of 12 8 Passionflower: medicinal plant parts, tea versus extracts, subjective versus measured sleep, a small anxiety comparison, traditional use, and sedation risks Peppermint oil: essential oil versus tea, capsule release, IBS trial disagreements, medicinal-use categories, reflux, and age-specific safety Red yeast rice: monacolin K and lovastatin, variable products, cholesterol and coronary-event evidence, citrinin, newer safety assessment, and changing claims Saw palmetto: berry extracts, placebo-controlled urinary results, escalating exposure, European medicinal categories, PSA, and safety limits Botanical catalog E 5 of 12 7 Cordyceps products: species, cultivation, exercise evidence, immune markers and safety Lion's mane: mushroom forms, cognition trials, mood claims and safety limits Maca: root preparations, gelatinization, sexual-function and fertility evidence, and safety limits Reishi: Ganoderma species, extracts, cancer and metabolic claims, and safety limits Yohimbe and yohimbine: bark products, labels and enhancement claims Gut products 4 of 8 4 Digestive enzyme supplements: targeted uses, blends and pancreatic replacement Prebiotics: substrates, fibers, gut microbes and indication-specific benefits Probiotics Longevity marketed products 5 of 8 3 NAD boosters: NAD, NR, NMN and infusions Quercetin: food flavonols, supplement forms, absorption, blood pressure and immune claims Spermidine: polyamines, extract and purified forms, autophagy biology, mortality associations and a negative memory trial Other ingredients and blends 11 of 11 0 Astaxanthin: carotenoid forms, skin and exercise trials, lipid findings and product-specific safety Beta-glucans: cereal versus yeast forms, lipid reviews, food matrices, a newer negative bread trial, respiratory claims, and scoped health labels Chondroitin: cartilage function, formulation differences, mixed knee evidence, hand osteoarthritis, joint-space outcomes, and conflicting recommendations Collagen supplements: proteins, peptides, skin and joint evidence, and bias Dietary supplements Electrolyte drinks: minerals, sweat, carbohydrate, water, and oral rehydration Glucosamine: sulfate versus hydrochloride, conflicting osteoarthritis trials and guidelines, joint-space measures, prevention, longevity associations, and safety MSM: methylsulfonylmethane, small knee-pain studies, mixed arthritis endpoints, a negative prevention trial, combination products, and food-safety boundaries N-acetylcysteine: NAC, glutathione, antidote use, COPD findings, conflicting OCD trials, GlyNAC, and supplement policy Nattokinase: natto versus enzyme extracts, activity units, cardiovascular surrogate trials and bleeding concerns Taurine: biological function, animal longevity findings, disputed aging biomarkers, selected blood-pressure trials, and energy-drink boundaries Other supplement questions 5 of 11 6 Activated charcoal: poison care, medicines and consumer detox claims Spirulina and chlorella supplements: ingredients, nutrient claims and contamination testing Colloidal silver: particles, promises and actual medical uses DHEA: a hormone precursor, oral versus vaginal prasterone, aging claims, different guideline contexts, fertility evidence, and safety Melatonin: body-clock timing, sleep, and product quality Quality and safety 5 of 8 3 5-HTP: serotonin precursor versus tryptophan, weak depression evidence, a small sleep trial, interaction warnings, and disputed historical contamination findings Erectile dysfunction: erections, desire, underlying causes, treatment options, and enhancement claims Independent certification: product seals, laboratory accreditation and the scope of a claim Melatonin: body-clock timing, sleep, and product quality Milk thistle: silymarin mixtures, liver claims, hepatitis C and NASH trials, product quality, and uncertain benefit Supplement and medicine interactions Evidence and use 6 of 8 2 Dietary supplements Probiotics Quercetin: food flavonols, supplement forms, absorption, blood pressure and immune claims Turmeric and curcumin: food, extracts, absorption, clinical outcomes, and liver risk Vitamin B6: forms, foods, nerve toxicity, intake limits, and changing regulation Ingredient identity forms and biological products 6 of 24 18 BCAAs and EAAs: amino-acid categories, synthesis, soreness and longer-term outcomes Collagen supplements: proteins, peptides, skin and joint evidence, and bias Cordyceps products: species, cultivation, exercise evidence, immune markers and safety Glycine: amino-acid function, small sleep studies, daytime tests, the 2026 collagen review, GlyNAC attribution, and longevity uncertainty Probiotics Spermidine: polyamines, extract and purified forms, autophagy biology, mortality associations and a negative memory trial
Medicines prescribing and medication safety 24 of 64 topics have reading · 40 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Medicines prescribing and medication safety: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Medication principles 2 of 7 5 Food–drug interactions: absorption, metabolism, dietary consistency and exact formulations Medicines: benefits, risks, and interactions Polypharmacy and deprescribing: appropriate combinations, medication review and safe change Cardiometabolic medicines 1 of 6 5 GLP-1 and dual-incretin medicines Brain mood and pain medicines 3 of 7 4 ADHD: diagnosis, support, and treatment Depression: treatment options and their limits Pain-relief medicines: acetaminophen, NSAIDs, opioids and different formulations Immune and infection medicines 3 of 6 3 Antibiotics and resistance: what works, what becomes resistant, and stewardship Antifungal medicines: skin, scalp, nail and oral treatment are different contexts Topical corticosteroids: potency, skin site, formulations and withdrawal uncertainty Other major drug classes 4 of 6 2 Acid-suppressing medicines: H2 blockers, PPIs and short versus continuing treatment Antacids: neutralizing acid, ingredient differences and combination products Anti-diarrheal medicines: symptom relief, fluid replacement and label boundaries Cancer: biology, diagnosis, and treatment Cough and cold medicines: symptom targets, combinations and pediatric boundaries Laxatives: bulk-forming, osmotic, stimulant and stool-softening medicines Medicated acne products: active ingredients, formulations and measured outcomes Nasal corticosteroid sprays: inflammation control, delivery and product boundaries Wart-removal products: salicylic acid, home freezing and clinical comparisons Medication safety contexts 1 of 6 5 Polypharmacy and deprescribing: appropriate combinations, medication review and safe change Access and surveillance 4 of 7 3 Compounded, generic and brand-name medicines Counterfeit medicines: falsification, quality failures and verifying the supply source Generic and brand medicines: equivalence, inactive ingredients and different approval pathways Medication recalls: hazard classes, batch identity, notices and treatment continuity Optimization claims 0 of 6 6 No linked reading Medication process interactions and access 7 of 15 8 Counterfeit medicines: falsification, quality failures and verifying the supply source Food–drug interactions: absorption, metabolism, dietary consistency and exact formulations Medication reconciliation: comparing medicine lists and resolving unintended discrepancies Medicines during heat waves: heat tolerance, storage and an individual action plan Medicines during religious fasting: faith practices, formulations and condition-specific planning Polypharmacy and deprescribing: appropriate combinations, medication review and safe change Supplement and medicine interactions
Surgery procedures implants and advanced therapies 10 of 56 topics have reading · 46 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Surgery procedures implants and advanced therapies: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Surgical care 4 of 7 3 Surgery and anesthesia: care phases, sensation and sedation, outcomes and safety evidence Procedures and informed consent Procedure families 0 of 6 6 No linked reading Devices and implants 1 of 7 6 Dental implants: the fixture, connector, artificial tooth and long-term care Transplantation and donation 2 of 6 4 Organ transplantation: organ types, donor pathways, continuing care and outcome evidence Stem-cell and bone-marrow transplantation: cells, donors, recovery and outcomes Advanced therapies 2 of 6 4 CAR-T cell therapy: engineered immune cells, selected cancer comparisons and safety follow-up Gene therapies: addition, editing, delivery, disease-specific evidence and follow-up Cosmetic procedures 0 of 6 6 No linked reading Intervention claims 0 of 6 6 No linked reading Procedural recovery and benefit assessment 1 of 13 12 Procedures and informed consent
Rehabilitation recovery and functional care 11 of 54 topics have reading · 43 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Rehabilitation recovery and functional care: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Rehabilitation disciplines 0 of 6 6 No linked reading Rehabilitation contexts 1 of 6 5 Stroke and TIA: types, warning signs, treatment, and recovery Functional treatment 1 of 6 5 Balance boards: ankle rehabilitation, exergames and outcome differences Balance training: static, dynamic and reactive skills, fall outcomes, and transfer Rehabilitation supports 3 of 6 3 Insoles and orthotics: cushioning, support, custom manufacture and evidence Rehabilitation and everyday function Wheelchair seating and skills: fit, controls, training and participation Chronic condition recovery 0 of 6 6 No linked reading Recovery assessment 2 of 6 4 Rehabilitation and everyday function Rehabilitation services: teams, settings, referral, access and delivery evidence Manual and physical modalities 3 of 6 3 Foam rolling: range of motion, pressure sensitivity and recovery limits Heating pads: heat delivery, short-term pain evidence and burn precautions Hot-water bottles: sealed water, electrical alternatives and burn evidence Kinesiology tape: elastic support, sham comparisons and uncertain benefits Massage: techniques, symptom relief, sports recovery, lymphatic care, and limits Community rehabilitation and complex recovery 1 of 13 12 Rehabilitation services: teams, settings, referral, access and delivery evidence
Complementary traditional and integrative approaches 8 of 73 topics have reading · 65 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Complementary traditional and integrative approaches: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Whole systems 1 of 7 6 Homeopathic products: dilution, evidence, labels and replacement risks Traditional medicine contexts 0 of 7 7 No linked reading Movement and body practices 4 of 8 4 Pilates: mat and reformer classes, fitness and evidence for back pain Tai chi and qigong: movement traditions, balance, symptoms, and study limits Yoga: practices, pain and anxiety studies, comparison groups, and adaptation Needling and manual practices 2 of 7 5 Acupuncture: comparators, chronic pain, safety, and guideline disagreement Foam rolling: range of motion, pressure sensitivity and recovery limits Massage: techniques, symptom relief, sports recovery, lymphatic care, and limits Psychological and expressive approaches 1 of 7 6 Meditation: mindfulness, structured courses, apps, benefits, and difficult experiences Energy and other claims 0 of 6 6 No linked reading Natural product traditions 0 of 7 7 No linked reading Evaluation and safety 0 of 7 7 No linked reading Publicly documented regional traditions 0 of 22 22 No linked reading
Wellness protocols devices and biohacking 29 of 91 topics have reading · 62 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Wellness protocols devices and biohacking: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Temperature interventions 4 of 7 3 Cold and heat for pain: local comfort, injury context and skin safety Cold-water immersion Sauna and heat exposure Light and electromagnetic approaches 4 of 6 2 Earthing and grounding: electrical contact, pilot findings, and unproven health claims PEMF devices: changing magnetic fields, medical uses, and consumer mats Red light therapy: wavelengths, clinical uses, and wellness claims Oxygen pressure and respiratory protocols 3 of 6 3 Hyperbaric oxygen: medical uses, wellness chambers, and aging claims Supplemental oxygen for wellness: medical need, performance experiments, and consumer claims Recovery devices 4 of 6 2 Compression garments and recovery boots: medical uses, strength, soreness, and performance Massage guns: percussion, flexibility, recovery, and clinical limits Vibration plates: platform parameters, strength and bone-density evidence Brain and nervous system devices 3 of 6 3 Consumer vagus nerve devices: nerve targets, clinical indications, and wellness uncertainty Noninvasive brain stimulation: magnetic and electrical methods, clinical treatment, and enhancement claims Injections infusions and research products 1 of 7 6 NAD boosters: NAD, NR, NMN and infusions Additional device and protocol trends 2 of 10 8 PEMF devices: changing magnetic fields, medical uses, and consumer mats TENS for pain: temporary relief, different protocols, and mixed trial results Protocol trends 2 of 7 5 Fasting-mimicking diets: periodic low-energy eating and what the human trials measured Mouth taping: oral closure, selected sleep-apnea studies and airway-dependent risks Claimed cleansing approaches 0 of 7 7 No linked reading Self experiment safeguards 0 of 7 7 No linked reading New and combined optimization claims 6 of 22 16 Consumer vagus nerve devices: nerve targets, clinical indications, and wellness uncertainty Earthing and grounding: electrical contact, pilot findings, and unproven health claims Electrical muscle stimulation: rehabilitation, whole-body training, and product claims NAD boosters: NAD, NR, NMN and infusions Supplemental oxygen for wellness: medical need, performance experiments, and consumer claims
Longevity geroscience and experimental optimization 5 of 60 topics have reading · 55 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Longevity geroscience and experimental optimization: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Aging mechanisms 0 of 8 8 No linked reading Research interventions 1 of 6 5 NAD boosters: NAD, NR, NMN and infusions Translational questions 1 of 6 5 Biomarkers, surrogate endpoints, and actual health outcomes Aging measurements 1 of 6 5 Biological age tests: clock families, risk prediction, repeatability and longevity claims Reproductive and immune aging 0 of 6 6 No linked reading Speculative approaches 0 of 6 6 No linked reading Decision and context 0 of 6 6 No linked reading Clinical translation and commercial longevity services 2 of 16 14 Biological age tests: clock families, risk prediction, repeatability and longevity claims Biomarkers, surrogate endpoints, and actual health outcomes
Health services care navigation and patient rights 17 of 64 topics have reading · 47 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Health services care navigation and patient rights: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Access and entry 1 of 6 5 Telehealth: video, phone, messages, monitoring and when remote care fits Navigation 5 of 7 2 Medical records: portals, copies, corrections, results and privacy after sharing Living with several conditions: treatment workload, competing goals and coordinated care Navigating healthcare and appointments Referrals: clinical requests, insurance rules, specialist advice and closing the loop Second opinions: independent review, diagnostic differences, preparation and limits Communication and decisions 3 of 6 3 Informed consent: permission, understanding, capacity and the role of a form Shared decision making: evidence, personal priorities and what decision aids can do Social conditions and health equity Cost and coverage 2 of 6 4 Health insurance: premiums, deductibles, networks and what a bill means Healthcare access and costs: eligibility, available services, affordability and outcome evidence Quality and safety 1 of 6 5 Patient safety and speaking up about care Acute and critical care 0 of 7 7 No linked reading Rights and governance 3 of 6 3 Advance directives: living wills, proxies, medical orders and planning outcomes Informed consent: permission, understanding, capacity and the role of a form Medical records: portals, copies, corrections, results and privacy after sharing Palliative care, quality of life, and caregiver support Care contexts 2 of 7 5 Home and long-term care: services, settings, assessment, funding and quality Care burdens and patient centered decisions 0 of 14 14 No linked reading
Public health social conditions and health equity 16 of 75 topics have reading · 59 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Public health social conditions and health equity: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Social conditions 6 of 8 2 Social connection and loneliness Social conditions and health equity Social determinants of health: structural conditions, causal questions and policy evaluations Inequity and exclusion 3 of 8 5 Health equity: fairness, need, access and measurable differences Social conditions and health equity Social determinants of health: structural conditions, causal questions and policy evaluations Population measures 0 of 6 6 No linked reading Prevention systems 1 of 6 5 Occupational health hazards: exposure, risk assessment, prevention, worker participation and health surveillance Workplace infection prevention: transmission routes, cleaner air, vaccination, sick leave, task-specific PPE and exposure response Surveillance and preparedness 1 of 6 5 Public health surveillance: collection methods, signals, changing ascertainment and evidence limits Policy and economics 2 of 6 4 Community prevention and public health: programmes, policies, implementation and outcomes Public health surveillance: collection methods, signals, changing ascertainment and evidence limits Settings and infrastructure 0 of 8 8 No linked reading Population contexts 0 of 7 7 No linked reading Participation and community 2 of 6 4 Community prevention and public health: programmes, policies, implementation and outcomes Structural drivers and collective wellbeing 1 of 14 13 Health misinformation and influencers: claim accuracy, uncertainty, credentials, incentives and communication evidence
Research methods health information and claim evaluation 43 of 104 topics have reading · 61 without reading On a narrow screen, scroll the table horizontally to see all columns. Keyboard users can focus the table area and use the arrow keys.
Research methods health information and claim evaluation: every indexed branch Branch and topic list Topics with reading Without reading Available introductions Question formation 0 of 6 6 No linked reading Study designs 4 of 9 5 Randomized trials: assignment, analysis targets and application to care How to read health evidence Study designs: descriptive, observational, experimental and predictive questions Evidence synthesis 3 of 7 4 Conflicting health guidelines: compare questions, evidence, values, versions and settings How to read health evidence Systematic reviews and meta-analysis: review purposes, pooling, overlap and interpretation Bias and uncertainty 6 of 8 2 Bias in health research: selection, measurement, missing results and uncertain direction Causation and confounding: assumptions, selection and competing explanations Systematic reviews and meta-analysis: review purposes, pooling, overlap and interpretation Statistics and causal interpretation 5 of 9 4 Causation and confounding: assumptions, selection and competing explanations Certainty and uncertainty: confidence intervals, meaningful effects and evidence appraisal Randomized trials: assignment, analysis targets and application to care Statistical significance and clinical meaning Understanding absolute risk, relative effects, and uncertainty Evidence judgments 5 of 7 2 Bias in health research: selection, measurement, missing results and uncertain direction Certainty and uncertainty: confidence intervals, meaningful effects and evidence appraisal Conflicting health guidelines: compare questions, evidence, values, versions and settings How to read health evidence Information ecosystem 2 of 9 7 Health misinformation and influencers: claim accuracy, uncertainty, credentials, incentives and communication evidence Preprints and peer review: publication stages, versions and what was checked Integrity 5 of 8 3 Conflicts of interest and research integrity: financial and other interests, disclosure, management and evidence appraisal Retractions and source updates: corrections, expressions of concern, versions, provenance and evidence reassessment Research process 3 of 10 7 Participating in clinical research: practical questions before, during and after a study Placebo and nocebo: context effects, real symptoms and careful comparisons Randomized trials: assignment, analysis targets and application to care Science communication 3 of 7 4 Causation and confounding: assumptions, selection and competing explanations Certainty and uncertainty: confidence intervals, meaningful effects and evidence appraisal Health misinformation and influencers: claim accuracy, uncertainty, credentials, incentives and communication evidence Updating knowledge 3 of 8 5 Conflicting health guidelines: compare questions, evidence, values, versions and settings Randomized trials: assignment, analysis targets and application to care How to read health evidence Retractions and source updates: corrections, expressions of concern, versions, provenance and evidence reassessment Claim provenance and inference limits 4 of 16 12 Bias in health research: selection, measurement, missing results and uncertain direction Conflicting health guidelines: compare questions, evidence, values, versions and settings Health misinformation and influencers: claim accuracy, uncertainty, credentials, incentives and communication evidence
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Reader-question checks 160 of 160 curated educational queries retrieved an expected authored answer; 40 of 40 boundary queries stayed unanswered. This is a test of retrieval on this set, not independent factual review or a measure of all possible questions.
Search retrieves exact authored questions, related background, or a visible gap. It does not generate a new clinical conclusion.
Keeping track of cited sources Saved checks of selected cited URLs are preserved here. The editor can run bounded checks and review page changes or access problems. A changed page does not establish a medical change, and an inaccessible page does not mean the evidence is unchanged.
These observations cover selected sources, not the entire atlas or every new publication. Health conclusions are never rewritten automatically.
Load latest source checks Latest saved observations are available on request.