Yo-Yo Dieting can Lead to Binge Eating
Researchers have seen that changes in stress-related gene can cause binge eating:
"U.S. researchers suggest changes in stress-related genes caused by yo-yo dieting can lead to binge eating.
Researchers led by Tracy Bale at the University of Pennsylvania in Philadelphia linked dieting to changes in several genes important in regulating stress and eating, and suggested this may affect how the brain reacts to future stress.
The study, published in the Journal of Neuroscience, found stressed-out mice with a history of dieting ate more high-fat foods than stressed-out mice that had not been on diets.
The researchers found dieting mice developed a stress hormone -- corticosterone -- and also displayed "depression-like behavior." Also, several stress-related genes had changed."