About the Book: On Muscle by Bonnie Tsui is a fascinating exploration of muscle science, strength, endurance, flexibility, and human performance, blending cutting-edge research with inspiring real-life stories. Through adventures with athletes, scientists, and communities, the book reveals how muscle health supports longevity, resilience, movement, and the powerful mind-body connection. Perfect for readers interested in fitness, exercise physiology, wellness, sports science, and healthy aging, it offers a fresh perspective on the remarkable role muscles play in everyday life.