Have you ever wondered why it can be so difficult to lose weight, despite your best efforts? According to Louis Aronne, M.D., the longtime director of the Comprehensive Weight Control Program at New York-Presbyterian Hospital/Weill Cornell Medical Center, it's not about willpower, it's about biology. Our bodies are programmed on a genetic level to resist weight loss, and the constant hunger that many overweight people experience while trying to lose weight is not in their heads. It's actually very common--especially among people who have gained twenty or thirty pounds (or more) above their ideal body weight. In The Skinny, Dr. Aronne outlines for readers the same plan that's changed the lives of hundreds of his patients, showing how to fix your internal biology by adjusting your eating and exercise one step at a time. Including comprehensive menus, restaurant options for every type of food, a do-it-at-home strength-training plan and exercise plans, more than fifty low-calorie, high-satisfaction recipes, and extensive advice that helps you put the plan into practice, here is the only book you'll need to learn how to defeat your hunger and cravings, and make the changes to your biochemistry that will keep the weight off for good. He also discusses the unique aspects of his treatment program, which will overcome problems that prevent people from losing, such as weight gain induced by sleep disorders, shift work, and stress, and the latest approaches that work when diet and exercise are not enough.