“Runaway competition for thinness generates an evolutionary mismatch, which drives up the risk of maladaptive eating symptons; in particular Abed suggested that AN arises as a direct consequence of competition for thinness, whereas BN may stem from attempts to maintaina nubile body shape.” Evolutionary PsychologyEating DisordersEvolutionary PsychopathologyAnorexia NervosaTcaBulimina Nervosa Book:Evolutionary Psychopathology: A Unified Approach Source: Evolutionary Psychopathology: A Unified Approach