The Sleep Position That Adds 11 Years to YOUR Arteries After 50

 

Most people think they sleep the way their body wants to. The physics says otherwise. For half the people over fifty who have ever been studied in a sleep laboratory, the position they spend eight hours in every night is silently aging their arteries by more than a decade — and they have never been told. The mechanism is not mysterious. It runs through one nerve, two structures the size of a grain of rice, and a single layer of cells one molecule thick. In this lecture, Feynman walks through the cascade from carotid body to endothelium to pulse wave velocity, naming the researchers and the journals that built the case piece by piece — Nedergaard's glymphatic discovery, Benveniste's posture study, Oksenberg's positional apnea work, Somers' three decades of sympathetic nerve recordings, and the Paris reference values that turn vascular stiffness into a literal age in years.