The Vital Role of Muscle Health: Longevity, Exercise, and Optimal Protein Nutrition Most people think muscles are just for looking good at the beach or lifting heavy boxes. They see the gym as a place for vanity or sports performance. But skeletal muscle is actually one of the most important organs in your body. Paul Smith Johnson, head of product innovation at My Protein, recently sat down with Professor Lee Breen to talk about this. Professor Breen is a muscle physiology expert at the University of Leicester who studies how muscle changes as we age. The Multifaceted Importance of Skeletal Muscle for Overall Health Skeletal muscle is so large that some scientists argue it is the biggest organ in the human body, rivaling the skin. Its job goes far beyond moving your arms and legs. Professor Breen explains that muscle acts as an endocrine organ. This means it releases chemicals and signals that talk to other parts of your body. When you exercise, your muscles release factors t...