Did you know you can beat stress, lift your mood, fight memory loss, sharpen your intellect, and function better than ever simply by breaking a sweat? The evidence is incontrovertible: exercise physically remodels our brains for peak performance. In "Spark", Dr Ratey embarks upon a fascinating and entertaining journey through the mind-body connection, showing how exercise is truly our best defense against everything from depression to ADD, from addiction to Alzheimer's. Filled with amazing case studies (such as the revolutionary fitness program in Naperville, Illinois, which has put this school district of 19,000 children first in the world of science test scores), "Spark" is the first book to explore comprehensively the connection between exercise and the brain. It will change forever the way you think about the gym - or, for that matter, simply the way you think.