i tried jenny craig and weight watchers and atkins and a bunch of others and exercise, exercise, exercise, it just wouldn't work. >> she was teased so much, at one point she took a month off school. not only did her size weigh on her confidence, it caused a list of medical problems, including diabetes, sleep apnea, joint pain, and ovary syndrome. >> i was taking seven medicines a day. >> that's when she decided to shrink her stomach. >> we think it makes a lot of sense to do this procedure because there's no ab storgs. >> drastically reducing the size of megan's stomach. >> if you see right here in the middle, that's the staple line that turns the sack into a tube. >> almost one year after her procedure, megan has lost 153 pounds. she shrank from a size 26 to a size 4, and she's transformed her habits. now she only eats healthy foods in small quantities. only teenagers who meet strict requirements qualify for the surgery. >> body mass index should be more than 35. that's the number we use, and have other diseases, like hypertension, diabetes, arthritis, really bad headaches. >> now megan