In my view an Excellent presentation on sarcopenia.
“Dr. William Evans is a professor of medicine at Duke University whose pioneering research established sarcopenia as a recognized medical condition. In this episode, he reveals groundbreaking findings about muscle mass and aging that challenge decades of scientific assumptions. Dr. Evans explains why traditional methods like DEXA scans have been measuring the wrong thing, and introduces his revolutionary creatine-based test that accurately measures muscle mass with just a single urine sample. His research on over 4,000 people proves that muscle mass is central to how we age - affecting everything from physical disability to cognitive function and mortality risk. We discuss practical strategies for maintaining muscle, including resistance training protocols, optimal protein intake for older adults, and the concerning effects of GLP-1 weight loss drugs on muscle preservation. Dr. Evans also shares insights on hormone therapy, the future of muscle-building drugs, and why exercise remains the single most important intervention for healthy aging and Alzheimer’s prevention.”
Where to Follow Dr. Evans’ Work 
Links in the video
Dr Evans page at Duke University
https://medicine.duke.edu/profile/william-joseph-evans
Short Physical Performance Battery
https://www.physio-pedia.com/home/
MyoCorp website https://myocorps.com/
Direct video link: https://youtu.be/1p_B26MsgZ4?si=lfol16NBZ4fY5usQ