Howard J. Luks

Luks is an orthopaedic surgeon and sports medicine specialist in New York who spent years watching patients arrive with joint problems that were really metabolic ones, and Longevity Simplified grew from that. The argument is deliberately unexciting: healthspan matters more than lifespan, most of the gain comes from muscle, aerobic base, sleep and blood sugar, and the supplement and biohacking trade is selling a certainty nobody has. He holds an actual clinical qualification, which separates the book from much of its shelf, and he is direct about the limits of the evidence he cites.