A.J. and the other second graders do everything except play sports when they go to "fizz ed" class with their new teacher, Miss Small.

Based on the premise that dysfunctional movement patterns impede athletic performance, the author presents the construction and function of his own movement and mobility system, based on his midline stabilization and organization, one-joint rule and laws of torque movement principles, all to remedy body stiffness, prevent injuries and improve and extend athletic capabilities.

"This highly engaging landmark work, a natural history of exercise--by the author of the best seller The Story of the Human Body--seeks to answer a fundamental question: were you born to run or rest? The first three parts of Exercised roughly follow the evolutionary story of human physical activity and inactivity, even as each chapter shatters a particular myth about exercise. Because we cannot understand physical activity without understanding its...