Anatomy, medicine, mental health, public health, sleep, nutrition, longevity, and care. Browse curated, sandboxed HTML presentation decks in Health, each with crawlable summaries, slide outlines, and topic metadata.
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The human dentition is the hardest tissue in the body and one of the most demanding to maintain. Two-thirds of the world's adults have untreated dental caries — the most prevalent disease on Earth, by the WHO's 2022 Global Oral Health Status Report.
The Science of Disease in Populations
Exercise is the single most powerful intervention in the prevention of chronic disease. The data on cardiorespiratory fitness as a mortality predictor is more robust than the data on smoking, blood pressure, or LDL.
Strength. Endurance. Recovery. Periodization. The physiology and the practice of training a human body to do more than it could yesterday.
Genomics is the systematic study of an organism's complete DNA — every base, every gene, every regulatory element — and the relationships between sequence, function, and disease.
Anatomy is the study of structure; physiology is the study of what that structure does. Together they describe a living architecture composed of roughly thirty-seven trillion cells organized into tissues, organs, and eleven major systems.
A working laboratory notebook on innate and adaptive defense, the antibody Y, vaccines, and the ways the immune system mistakes self for enemy.
Aging is the progressive loss of physiological integrity. It is the largest single risk factor for cancer, cardiovascular disease, neurodegeneration, type 2 diabetes, and sarcopenia.
"It is more important to know what sort of person has a disease than to know what sort of disease a person has." — attributed to Hippocrates of Kos (c. 460 — c. 370 BCE).
Mental health treatment in 2026 is more effective and more available than at any point in human history. The treatment gap — the proportion of people with diagnosable disorders who receive no treatment — remains roughly half in high-income countries, and 80%+ in low- and middle-income countries.
Mental health is a state of well-being in which a person can cope with normal stresses, work productively, and contribute to community. Mental illness — diagnosable disorders of mood, thought, behavior, or development — is common: roughly 1 in 5 adults globally each year.
The Hidden Ecosystem Within Us
A cookbook editor's tour of the macros, micros, metabolism, and the diets you've been told to follow — with the evidence behind each, plainly stated.
A clinician's spec sheet to drugs — pharmacokinetics, pharmacodynamics, and the major classes by mechanism, with named molecules.
Between 1900 and 2000, life expectancy at birth rose from ~47 to ~77 years in the United States. Modern medicine — antibiotics, surgery, transplant — accounts for some of that. The rest came from public health: clean water, vaccines, sanitation, food safety, occupational regulation, tobacco control, road safety.
A guided night through the body's most repeated and least understood ritual — circadian rhythm, the architecture of stages, the meaning of dreams, and the practice of sleep hygiene.
The Science of Athletic Performance, Injury, and Recovery
Ancient Healing Wisdom Across Civilizations
A vaccine is a controlled rehearsal. The body meets a defanged version of a pathogen, mounts an immune response, and files the memory away. When the real thing arrives, the response is already drafted.
Average life expectancy in 1900 hovered around the mid-40s. Today it sits near 79 in high-income countries — but the gain came mostly from preventing infants and young adults from dying, not from extending old age.
Of the systems of the human body — twelve plates & a colophon Ex Officina · Anno MMXXVI Plate II — Numerus Corporis The body in numbers Corpus humanum — an inventory of the parts Before naming the systems, consider the magnitude. The human body is a city of cells, a refinery of chemistry, a cartography of vessels — reckoned here in round figures, as the old anatomists were fond of doing.
The big steps that saved lives — from cowpox lymph in a country doctor's hand to messenger RNA folded by an algorithm. Two centuries of pushing back against death.
Cardiovascular disease — ischemic heart disease, stroke, hypertensive complications — claims roughly 17 million lives every year, more than any other cause of death worldwide.
A 13-slide field guide to what we know — and what we keep getting wrong — about training, adaptation, and the body's response to movement.
Disorders, treatments, and the evolving understanding of how brain, mind, and circumstance intertwine.
Field Notes / 13 slides NUTRITION What we know, what we don't. A honest survey of dietary science: macros, micros, the metabolic narrative, ultra-processed foods, the Mediterranean diet, the gut microbiome — and where the evidence runs thin.
From Justinian's plague to the COVID-19 era — thirteen panels of contagion, catastrophe, and the slow accumulation of public-health wisdom.
Small molecules and large biologics navigating a body of 10 13 cells, looking for the one protein they were designed to bind.
a third of life, finally examined