Bulimia nervosa has been recognized as an eating disorder since Choose...ancient timescolonial timesaround World War IIthe last quarter of the twentieth century. Bulimic patients are usually in their twenties or thirties and tend to feel Choose...organized and determineddisorganized and bad about themselvesgoal-oriented and drivenreliant and apathetic. To meet the official DSM-IV definition of the disorder, bingeing and purging must occur at least Choose...once a week for one monthtwice a week for two monthstwice a month for three monthstwice a month for six months. Bulimic patients who frequently purge develop a variety of physical symptoms such as Choose...eroded tooth enamelspleen inflammation and enlargementhyperactivitynone of the above. The body weight of people with bulimia is typically Choose...close to or slightly above that considered healthyclose to or slightly below that considered healthy50% above that considered healthy50% below that considered healthy During treatment for bulimia nervosa, patients may also be treated for substance abuse and Choose...depressionphysical abusechronic fatigue syndromebinge-eating disorder.