Researchers writing in the New England Journal Of Medicine are reporting that weight-gain (and loss!) can be socially "contagious" and that, in fact, "If one person gains, it can impact social ties with three degrees of separation, so a friend of a friend of a friend is also impacted," explains USA Today. Adds one obesity researcher: "If you are trying to lose or control your weight, pick your friends carefully." Uh, okay, will do! Might we also suggest avoiding the undermining women at work who put candy and sweets on their desks? [USAToday]