ever feel like you're fighting the battle of the bulk and losing? you watch what you eat, live at the gym and still feel the pounds packing on any way. by the way, you have to love giving the pregnant lady a segment on weight gainful thanks, guys. our next guest says there's a good chance the hours of sweat may be a waste of time and the traditional ways we think of diet and exercise don't work when it come to weight loss. i have to admit, i am a little bit skeptical. here to break it down is renowned pediatric and endocrinologist. sorry about that. he is the author of the new book, fat chance. beating the odds against sugar, processed food, obesity and disease. thank you for being with us. >> thank you for having me. i never said it was a waste of time. in fact, exercise is the single best investment you can do for your health. not for your weight. if you're at the scale, that's the problem. if you look at your pant size,