The most insidious aspect of the link between stress and obesity is that it tends to be self-reinforcing, notes Bonnie Taub-Dix, RD, of New York City, a weight-loss expert and spokeswoman for the American Dietetic Association. “Very often, when people are stressed they may eat inappropriately,” Taub-Dix says. “If that causes them to gain weight, that can cause even more stress. You wind up causing exactly what you’re trying to alleviate.”
more info here: http://www.everydayhealth.com/diet-nutrition/food-and-mood/stress-and-dieting/stress-and-other-causes-of-obesity.aspx