Including: eating, in a discrete period an amount of food that is larger than most people would eat during a similar period, a sense of lack of control during the episode. The binge eating and compensatory behaviors occur at least twice a week for. Purging type is more common, non purging type accounts for 6-8: comorbid depression, alcohol use, rates of other disorders, purging only reduces about 50% of whats eaten, and only if you do it right away. and there are a lot of comorbid consequences of it. Depression usually follows bulimia and comes as a reaction to it. Most people who seek treatment are in the purging subtype. Risk higher for females born after 1960. Strongest predictors of persistence: childhood obesity, overemphasis on being thin. However people with anorexia nervosa still have an appetite, they think about food all the time. Refusal to maintain body weight at or above a minimally normal weight for age and height.