biochemi biochemist silvia terra looks at body fat. she's interviewed by a medical reporter for the new york times. >> you told there's a set point and your brain sets how much your weight is, does it change when you get older, what happens to it? >> that's the age and almost a force of nature that we accumulate fat and as we age we lose a lot of fat busting hormones, the stuff that helps rebuild tissue and kept our fat metabolizing. and testosterone, men and women, you can't eat like you did with 22 it's going to make you fat as you get older. it's not just the level of fat, it's the distribution affected as well. >> sunday night at 9 p.m. eastern. enter aisle or some of the things we've done in years past. there there are lots of people around with microphones. the authors happy to take questions. john tamny is with us courtesy of paul and barbara paul. he is senior fellow at reason foundation, a senior economic advisor in research and trading and an editor of real clear market.com. he frequently writes about the securities market al

biochemi biochemist silvia terra looks at body fat. she's interviewed by a medical reporter for the new york times. >> you told there's a set point and your brain sets how much your weight is, does it change when you get older, what happens to it? >> that's the age and almost a force of nature that we accumulate fat and as we age we lose a lot of fat busting hormones, the stuff that helps rebuild tissue and kept our fat metabolizing. and testosterone, men and women, you can't eat like you did with 22 it's going to make you fat as you get older. it's not just the level of fat, it's the distribution affected as well.