On Muscle

'A truly moving ode to the tissues that move us' Ed Yong, bestselling author of An Immense World and I Contain Multitudes


'You're about to learn more about yourself and your world than you could ever imagine' Christopher McDougall, bestselling author of Born to Run

Join athlete and bestselling author of Why We Swim, Bonnie Tsui, as she jumps headfirst into the intriguing world of muscle. Through the five angles of strength, form, action, flexibility and endurance, Tsui blends cutting edge research with remarkable human stories to explore the importance of muscle in both our physical and mental health.


From weightlifting in the Scottish Highlands to a 50-mile run in the Nevada desert, Tsui's globe-trotting journey of discovery reveals how muscle moves us through the world, promotes longevity and most importantly makes the impossible feel possible. On Muscle is your guide to unlocking the immense potential of your body.