Exercised: Why Something We Never Evolved to Do Is Healthy and RewardingIf exercise is healthy (so good for you!), why do many people dislike or avoid it? These engaging stories and explanations will revolutionize the way you think about exercising not to mention sitting, sleeping, sprinting, weight lifting, playing, fighting, walking, jogging, and even dancing. "Strikes a perfect balance of scholarship, wit, and enthusiasm." Bill Bryson, New York Times best selling author of The Body If we are born to walk and run, why