The document discusses eating disorders such as anorexia nervosa and bulimia, defining them as emotional disorders characterized by abnormal eating habits like refusing to eat or binge eating followed by purging. It notes that anorexia involves an obsessive desire to lose weight through not eating, while bulimia involves consuming large amounts of food and then feeling guilt or shame that leads to purging. The purpose is to provide an overview of these eating disorders for a capstone research paper.