#644 Why You're Losing Muscle After 40: Amino Acids, Muscle Protein Synthesis & Midlife Metabolism with Dr. David Minkoff

If you're training consistently, eating healthy, and still struggling with muscle loss, slower recovery, stubborn body composition changes, or feeling like your metabolism simply doesn't work like it used to… this episode is for you. In this deep-dive conversation, I sit down with Dr. David Minkoff, physician, endurance athlete, and founder of BodyHealth, to explore what is really happening beneath the surface as we age—and why muscle health may be one of the biggest missing pieces in longevity, metabolism, and performance. We discuss: • Why muscle loss accelerates after 40—even if you exercise consistently • What anabolic resistance is and why building muscle becomes harder with age • The difference between AMPK (survival mode) and mTOR (build mode) • What muscle protein synthesis (MPS) actually means and how to stimulate it • Why simply "eating more protein" may not solve the problem • The importance of digestion, stomach acid, and protein utilization • Why reaching the leucine threshold matters for muscle repair and growth • The science behind essential amino acids (EAAs) and recovery • How under-fueling, overtraining, poor recovery, and chronic stress can keep you stuck • Why muscle is critical for blood sugar regulation, energy, metabolism, and healthy aging If you're a high performer, endurance athlete, active adult, or someone navigating midlife changes and wondering why your body no longer responds the way it used to—this conversation will help connect the dots. Because many active adults are not undertrained.  They are under-muscled.  And the solution may not be working harder. It may be learning how to send a stronger signal. Resources & Next Steps Support muscle protein synthesis and recovery with Perfect Aminos: https://www.bodyhealthaffiliates.com/42D431W/3QQG7/ Learn more about the 30-Day Muscle & Metabolism Reset: https://debbiepotts.net/30-day-group-program/ Explore coaching, testing, and your personalized FutureYou Blueprint: https://www.debbiepotts.net Remember:  You do not need more effort.  You need better signals.  Build muscle. Restore metabolism. Become your strongest Future You. Educational purposes only. Please consult your qualified healthcare practitioner before making changes to your nutrition, supplements, medications, or exercise program.