Whether your goal for your body is to lose a dress size or to avoid being seen by Google Earth, many Americans are in the same exact blubbery boat. You've tried dozens of diets, you've sweated so much that your drippings could fill an Olympic-size pool, and you've become convinced that skinny was synonymous with starvation. Those answers undoubtedly were the wrong ones. The real secret to achieving -- and maintaining -- the body you want is this: biology. In YOU: On a Diet, Dr. ...