In 2003, more than 3.5 million children under age fifteen required medical treatment for sports injuries, nearly half of which were the result of simple overuse. When did the quest to turn children into tomorrow’s superstar athletes lead adults to push them beyond all limits? Interviewing dozens of kids, parents, coaches, psychologists, surgeons, sports medicine specialists, and former professional athletes, journalist Mark Hyman explores how youth sports reached this problematic state, opening up a much-needed discussion about the perils of youth sports culture today and what we can do about it.