Episode 468: Dr. Stacy Sims: Why Ozempic Destroys Muscle + The Truth About Peptides and Cold Plunges

Jul 18, 2025

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Is Ozempic the miracle weight loss drug everyone claims, or are we creating a generation of "sarcopenic, chalky skeletons"? In this Fitness Fridya episode, Dr. Stacy Sims and I dive into the truth.

We discuss the peptide craze, exploring why BPC-157 might be the only one worth considering, and why WADA banning it actually proves it works. Plus, Dr. Sims settles the sauna debate once and for all - explaining why infrared saunas are basically expensive cold rooms and why Finnish saunas deliver real results for women's hormones and metabolism.

Dr. Stacy Sims is an international exercise physiologist and nutrition scientist who specializes in sex differences in training, nutrition, and environmental conditions. She's the author of "Roar" and "Next Level" and has spent decades researching how women's unique physiology requires different approaches to health and fitness.

What we discuss:

The Truth About Peptides and BPC-157
Ozempic's Hidden Dangers: Muscle and Bone Loss
When Ozempic Makes Sense (And When It Doesn't)
Microdosing GLP-1s: Health Hack or Dangerous Trend?
Combining Ozempic with Strength Training
Training in Your 20s and 30s vs. Later Years
Dr. Sims' Daily Routine and Non-Negotiables
Most Underrated Health Tip: Trusting Your Intuition
Saunas vs. Cold Plunges for Women
Why Ice Baths Spike Women's Cortisol
The Infrared Sauna Myth
Finnish Saunas: The Real Deal for Women's Health

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Find more from Dr. Stacy Sims:

Website: https://www.drstacysims.com/

Instagram: https://www.instagram.com/drstacysims

Find more from Jen:

Website: https://www.jennifercohen.com/

Instagram: @therealjencohen

Books: https://www.jennifercohen.com/books

Speaking: https://www.jennifercohen.com/speaking-engagements