As Dr. Jordan Metzl says, Exercise is medicine. It's the simplest way to keep yourself healthy and happy. Now he puts that philosophy - along with cutting-edge research and a motivational bedside manner - into a groundbreaking book split into three sections. First, an AZ list of maladies that affect quality of life for millions, along with the specific exercise prescriptions that will help fix them - from Type 2 diabetes to depression, from arthritic joints to PMS, from addiction to sleep apnea (the book also includes a special section on how exercise can help cancer treatment). Second, a doctor-approved eating plan to fuel fast weight loss and great workouts. And most important of all, an exhaustive (and exhausting) collection of fun, fat-torching, life-changing workouts that can be tailored for any fitness level.