Ozempic in Old Mice: 12% Longer Life, and Not Just From Eating Less

A new Nature study asks whether the shot already in millions of fridges can do more than shrink a waistline. Researchers gave older, healthy female mice semaglutide late in life and watched what happened to movement, memory, inflammation, and how long they lived. The twist is a head-to-head with eating less. No prescriptions, no hype cycle — just what the paper shows, what it does not, and why the result is landing now. This episode includes AI-generated content.