Table of Contents
Five Chapters · 300,000 Years
From a tryptophan metabolite inside a single-celled ancestor
to the moment you reached for your phone this morning —
a small book that reads the human brain as 3-billion-year-old code.
- I Origins 起 源 The four lines of code at the bottom of life Three billion years before you were born, nature had already finished writing the code for your happiness. This chapter traces each of the four DOSE neurotransmitters back to its first appearance — from a single cell sniffing for food to a mammal feeling love.
- II The Savanna 草 原 How the Stone Age ran the system perfectly Homo sapiens has no fangs, no claws, no thick fur — and somehow we survived 300,000 years of the Pleistocene. This chapter walks one day on the African savanna and shows how the four DOSE molecules quietly cooperated, from sunrise to firelight.
- III The Mismatch 错 配 How modern life systematically hacks the brain Why do we feel more anxious the richer we get? Because algorithms, delivery apps, and short-form video are surgically hijacking the reward system we brought back from the savanna. This chapter is the autopsy report.
- IV Re-wilding 重 野 A survival protocol for the modern primate You can't move back to Africa, but you can build your own little patch of "evolutionary adapted environment" inside a modern city. This chapter is the practical DOSE protocol — morning sun, cold exposure, eight-second hugs, real focus.
- V Bio-hacking 黑 客 Food, sleep, and the three molecules that make you suffer When willpower can't get you out the door, you go around it — at the chemistry layer. This chapter covers food, massage, capsaicin, and NSDR as bottom-up bypasses, and dissects the three molecules quietly making you miserable: dynorphin, cortisol, and adrenaline.
DOSE