Your body has an evolutionary instruction manual. Who even knew it was there? This guide covers 8 research-backed practices your biology expects: light exposure, sleep timing, nutrition/hydration, movement, stress management, temperature variation, and social connection. These aren't optional—they're foundational for metabolic health, hormone regulation, and mental wellbeing. Not trends or biohacks. Just basic biological needs most of us aren't meeting—with practical steps to stop overriding these patterns and start working with your biology instead.