What if the most powerful biohack is simply getting the morning sun in your eyes and letting your wearables prove it works? We explore Medicine 4.0 with Steven Stavrou DCM, a South African physician-biohacker who blends Chinese and functional medicine with hard data, showing how ancestral habits and modern metrics can drive prevention, performance, and genuine wellbeing. We start with incentives and shift them toward staying well, then build a plan from baseline labs, HRV, sleep, and body co...