U.S. Health and Human Services Secretary Tommy Thompson said last week, "You want to look better? You want to feel better? To do that, lower your caloric intake, lower the fats and carbs, eat more whole grains. And you exercise -- and that's as simple as it can be." As a physician who has worked with hundreds of patients who struggle with their weight, I believe that it's not as "simple" as Thompson makes it sound. If it were, then more than 60 percent of Americans would not be overweight or ...