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

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

Author: JJ Virgin 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 University of California, Berkeley, whose work has been cited over 80,000 times. If you’ve ever heard that muscle loss drives aging, chances are it traces back to his research. What you’ll learn: (04:33) How losing muscle directly lowers metabolic rate and increases disease risk. (06:49) Why common body composition tests fail to measure true muscle mass. (07:31) How a new non-invasive muscle test predicts strength, disability, and longevity. (13:32) Why muscle percentage is more predictive than body weight or BMI. (20:55) How neurological changes and inactivity contribute to muscle loss after 30. (23:37) Why strength and power training are essential for preserving fast-twitch fibers. (30:49) How protein intake and resistance training protect muscle during weight loss. Love the podcast? Here’s what to do: Subscribe to the podcast. Leave a review. Text a screenshot to me at 813-565-2627 and wait for a personal reply because your voice is so important to me. Want to listen to the show completely ad-free? Go to http://subscribetojj.com Click “TRY FREE” and start your ad-free journey today! When you’re ready, enjoy the VIP experience for just $4.99 per month or $49.99 per year (save 17%!) Full show notes (including all links mentioned): https://jjvirgin.com/drevans Learn more about your ad choices. Visit megaphone.fm/adchoices

Midlife isn't a crisis; it's a catalyst. On Well Beyond 40, JJ Virgin guides a conversation about rewriting the narrative of aging for women, moving from simply coping to truly thriving. This isn't about chasing youth, but about building a foundation of strength and vitality that makes the coming decades the most rewarding yet. Each episode feels like a direct, practical talk with a trusted expert who cuts through the noise. You'll hear actionable strategies rooted in science, focusing on how nutrition, movement, and mindset intersect uniquely during this life stage. JJ translates complex research into clear steps for refueling your body, managing energy, and cultivating a sense of purpose that goes far beyond the scale. The Well Beyond 40 podcast operates on the principle that knowing *why* something works is just as important as knowing *what* to do. Listeners are invited into a space where questions about metabolic shifts, hormonal balance, sustainable fitness, and intentional beauty are met with evidence-based answers and genuine empathy. It’s a resource for any woman ready to move past generic advice and discover what it means to age with power, confidence, and joy on her own terms. Tune in to reframe your approach and build a life that feels truly well-lived.
Author: Language: English Episodes: 100

Well Beyond 40
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