GLP-1 medications can produce meaningful weight loss, but what happens to muscle along the way? In this episode we separate alarming headlines from what researchers actually know about lean-mass changes. He explains why muscle matters after 40 and explores practical ways to protect strength through resistance training, adequate protein, thoughtful pacing, symptom management and better recovery. This balanced guide is for anyone using—or considering—semaglutide, tirzepatide or another GLP-1 treatment and wants weight loss to support long-term health rather than undermine it.