"Clinical observation has long suggested a link between personality and eating disorders. Research has consistently linked anorexia (particularly when the patient does not also have bulimic symptoms) to personality traits such as introversion, conformity, perfectionism, rigidity, and obsessive-compulsive features. The picture for bulimia is more mixed. Traits such as perfectionism, shyness, and compliance have consistently emerged in studies of individuals with bulimia or with anorexia, although research has often found bulimic patients to be extroverted, histrionic, and affectively unstable."