A disorder marked by frequent eating binges that are followed by forced vomiting or other extreme compensatory behaviors to avoid gaining weight. Also known as binge-purge syndrome.- of disordered people 90-95% women- ages 15-21 onset- lasts several years with periodic let up-weight stays within normal range- some become seriously underweight and qualify for anorexia- concerned with pleasing others, being attractive to others, & having an intimate relationship