Well Beyond 40

S3E837 - Sarcopenia After 40: Dr. William Evans on Muscle and Aging

Published: February 4, 2026

Duration: 58:41

In your later decades, how can strength training reverse muscle loss?


In this episode, I spoke with Dr. William Evans, the scientist who first described sarcopenia, to unpack why muscle loss—not aging itself—is the biggest threat to metabolism, independence, and long-term health. We explored why muscle is far more adaptable than most women realize, even into advanced age, and why traditional measurements like scale weight and lean mass miss the real picture.


Dr. William Evans is a muscle researcher, former pharma scientist, and a professor at the Univ...