November 9, 2012 9:54 pm DNA Testing Used for Weight Loss Dr. Sunil Bhoyrul talks to NBC 7 reporter Chris Chan about how he is using DNA testing to help Kourtney Kennedy lose weight. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks