From November 2, 2006: Cardiothoracic surgeon, author and TV host Dr. Mehmet Oz and anesthesiologist, internist and author Dr. Michael Roizen discuss their #1 New York Times Bestseller, You: On A Diet. They share the four steps to losing weight, the emergency foods to always have on hand and the only four exercises you will ever need to do again. Dr. Oz and Dr. Roizen also explain why you should focus on your waist size instead of your weight.