KidsHealth
Topics: Basic organ anatomy (heart, lungs, brain, digestive system), germ theory and vaccines, first aid basics, introductory emotional health
Prerequisites: None – grade 1-6 reading level
CDC BAM! Body and Mind
Topics: Nutrition labels and food groups, how infectious disease spreads, fitness concepts (heart rate, muscle groups)
Prerequisites: None – grade 3-6 reading level
TeensHealth
Topics: Puberty and reproductive health, introductory mental health (anxiety, depression, eating disorders), substance-use effects
Prerequisites: Level 1 anatomy/physiology basics
MedlinePlus
Topics: Disease-specific causes/symptoms/diagnostics/treatment pages, drug and supplement interactions, clinical trial listings
Prerequisites: High-school reading level; basic medical terminology
Khan Academy – Health and Medicine
Topics: Organ-system physiology, pathophysiology of common diseases, basic pharmacology (receptor mechanisms)
Prerequisites: High-school biology and chemistry; basic algebra
CDC.gov
Topics: Epidemiological reporting, vaccination/immunology basics, public health policy and travel advisories
Prerequisites: High-school biology; basic data literacy
Mayo Clinic
Topics: Symptom-checker/differential logic, diagnostic procedure explanations, treatment and surgical option overviews
Prerequisites: High-school biology; basic statistics literacy helpful
NIH
Topics: Institute-level research overviews, clinical trial phases, grant-funded science translation
Prerequisites: College-level biology; understanding of the scientific method
Osmosis by Elsevier
Topics: Board-exam-style organ-system pathology, pharmacology drug classes, clinical reasoning frameworks
Prerequisites: Undergraduate biology/chemistry; medical terminology familiarity
MIT OpenCourseWare – Health Sciences and Technology
Topics: Quantitative physiology, biomedical engineering techniques, systems-level disease modeling
Prerequisites: College calculus, physics, organic chemistry
Coursera – Johns Hopkins & Stanford Medicine
Topics: Epidemiology and biostatistics, global/public health systems, faculty-taught specialty topics
Prerequisites: Varies by course; intro courses need Level 2 knowledge, specialty courses need college science background
PubMed
Topics: Primary literature search (MeSH/Boolean), critical appraisal of study methodology, meta-analyses and systematic reviews
Prerequisites: Graduate/professional science training; research-design literacy
New England Journal of Medicine (NEJM)
Topics: Landmark clinical trial results, case-based clinical reasoning, precision medicine and genomics
Prerequisites: Medical/doctoral-level training; biostatistics interpretation
JAMA Network
Topics: Cross-specialty peer-reviewed research, health policy analysis, CME content for licensed practitioners
Prerequisites: Clinical/graduate training; evidence-grading familiarity
UpToDate
Topics: Point-of-care treatment algorithms, dosing and drug-interaction guidance, evidence-graded recommendations
Prerequisites: Active clinical practice/training; institutional or personal subscription required
FDA.gov
Topics: Drug/device approval pathways, post-market safety surveillance, regulatory science standards
Prerequisites: Background in regulatory affairs, pharmacology, or health policy