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From peptides and protein, to sleep hygiene and vaccines, what actually helps you age well? Physician Eric Topol breaks down the science — and the myths — of longevity and anti-aging.

This episode of TED Radio Hour was produced by Phoebe Lett. It was edited by Sanaz Meshkinpour and Manoush Zomorodi.

Our production staff at NPR also includes James Delahoussaye, Katie Monteleone, Matthew Cloutier, Fiona Geiran, Harsha Nahata and Rachel Faulkner White. Our executive producer is Irene Noguchi. Our audio engineer was Jimmy Keeley.