Barbell Medicine
Episode #386: Longevity Myths- Biological Clocks, GLP-1 Muscle Loss, and What Actually Predicts Lifespan
New
13 Feb 2026 · 2h 0m
Muscle growthWeight management
Play this episode
About this episode
The longevity industry is now worth over $100 billion per year. From DNA methylation clocks to multi-cancer blood tests and GLP-1 medications, the promises are bold.But what actually predicts lifespan?In this episode, Dr. Jordan Feigenbaum and Dr. Austin Baraki break down the science behind biological clocks, the real story on GLP-1–related muscle loss, and introduce the Barbell Medicine “Vital Five” — a clinically grounded framework for health and longevity.Key Points:The Three Generations of B