The most comprehensive plain-language breakdown of how biology — including genetics, hormones, and neurotransmitters — shapes human behavior. Covers dopamine, serotonin, stress systems, and decision-making with full scientific rigor. Essential reading for COMT, MAOA, FKBP5, and DRD2 research.
Sapolsky (a Stanford neurobiologist) walks backwards from a single human behavior — one second before, one minute, one hour, days, months, years, generations, evolution — showing how hormones, neurotransmitters, brain structure, genes (COMT, MAOA, DRD2, 5-HTT), childhood environment, culture, and evolutionary pressures all contribute to what we do.
Winner of numerous "best science book of the year" awards and considered the modern reference on the biology of human behavior — Sapolsky's Stanford lecture series based on this material has millions of views.
These peer-reviewed studies connect to the core ideas in this book. Each result has been scored for reliability.
Covers the research on how specific nutrients — omega-3s, B vitamins, fat-soluble vitamins — affect brain and metabolic function. Directly relevant to FADS1 and BCMO1 variant research on nutrient conversion efficiency.
Two researchers present the evidence for micronutrient support — including methylated B vitamins — in mental health. Directly relevant to MTHFR compound het and the connection between folate processing and neurotransmitter synthesis.
Sports psychology meets physiology. Covers the mental architecture of athletic performance — how to train the brain alongside the body. Particularly relevant for COMT ValVal athletes who perform differently under competition pressure versus low-stakes training.