Eating disorders do not always cause weight gain, or weight loss. Though “eating disorders” is a general category, the various disorders are vastly different with different effects. For example, drastic weight loss is more common in anorexia nervosa than it is in bulimia nervosa, though, weight loss may not occur in anorexia, and it may
Scientists have been hard at work trying to understand exactly how eating disorders work in the brain. Older research has found that eating disorders like bulimia nervosa impact the brain in multiple ways, working with the reward system, regulating mood and emotion, as well as living in the area of where the brain creates habits.