The Human Body & Human Health
How the body works, how it fails, and what the evidence says about keeping it working: the cell and the genome, metabolism and the gut, the heart, the brain, hormones, the immune system, aging, the causes of death, and the systems that pay for care, with every lifestyle claim graded settled, probable, contested, or marketing. Mental health and cancer each get a module of their own. Where the evidence is disputed, from the Alzheimer's antibodies to the childhood vaccine schedule, each side's case comes before the course's reading. Three worked examples, from a day's energy budget to the arithmetic of a positive test. Education, not medical advice, and it says so.