"The findings of this study raise questions about the concept of comorbidity as applied to eating disorders and suggest the likely utility for both research and clinical practice of considering eating-disordered symptoms in their characterological context (e.g., references 12, 34). The data from this study suggest that individuals who develop eating disorders who are constricted in most areas of their lives—e.g., who are passive and unassertive, emotionally constricted, and interpersonally avoidant—are likely to express this pattern with anorexic, rather than bulimic behavior. Clinically, these patients tend to be just as constricted in their sexual lives as they are with food, denying themselves pleasure, avoiding sexual relationships, feeling too ashamed or guilty to indicate to their partners what feels good, and so forth. Conversely, individuals with eating disorders whose ability to regulate their impulses and affects is tenuous—as expressed in spiraling emotions, tantrums, clinging to others for soothing, self-mutilation, and other impulsive acts—are likely to lose control over their eating in binges and to use self-destructive compensatory measures such as vomiting that momentarily help them regulate their affects. From this point of view, the question of whether bulimic symptoms should be regarded as impulsive behavior may be misplaced. The answer is probably that it depends on the personality configuration within which bulimic symptoms are contextualized. In low-functioning, emotionally dysregulated, type II bulimic patients, binge eating and purging may be functional equivalents of substance abuse, self-mutilation, and promiscuity. For these patients, bulimic symptoms may represent desperate efforts to regulate intense negative affects that call for immediate, and often maladaptive, responses. In contrast, high-functioning, perfectionistic, type I bulimic patients do not struggle with affects of the same intensity, and they have more adaptive coping strategies at their disposal for dealing with their distress. For these patients, binge eating is not equivalent to impulsive behaviors such as drinking or self-mutilation. More broadly, the data suggest that eating-disordered symptoms can be one expression, albeit a highly visible and sometimes life-threatening one, of a more general pattern of impulse and affect regulation. Thus, treating eating disorders primarily as disorders of food intake—and hence focusing primarily on altering the behavior, providing nutritional information (to patients who often know more about calories than the nutritionists who work with them), and so forth—may be taking the symptoms too literally. As in the treatment of trauma survivors, safety must be the clinician’s primary concern in treating patients with eating disorders when their symptoms are life-threatening or pose serious consequences for their current or future health. Particularly at those times, pharmacological and cognitive behavioral interventions can be essential components of a treatment plan, as they may be at various other points in the treatment."