Muscles are a key organ for longevity, yet the majority of patients I see in my clinic suffer metabolically, physically, and even mentally from a lack of optimal muscle strength.  Most individuals are also consuming insufficient protein to activate muscle growth.  In this episode I discuss: The science of muscle growth (aka muscle protein synthesis) The role of insulin and mTOR using a Marvel superhero  Defining optimal protein intake for muscle growth Vegetarian vs animal protein Fasting, exercise and other lifestyle factors affecting muscle