Anorexia Nervosa is widely recognized as having both cognitive and afective dimensions. Current accounts typically explain the perplexing behaviors associated with this eating disorder by emphasizing either its cognitive components—particularly false beliefs related to the denial of the patient’s actual conditions—or its afective components, such as the intense fear of gaining weight. I will argue that neither approach is sufcient to fully capture the complexity of Anorexia Nervosa. This paper explores a more comprehensive approach that goes beyond the cognitionafect dichotomy, aligning better with the DSM-5 criteria for Anorexia Nervosa. These criteria suggest that while both afective and cognitive components play signifcant roles, neither the cognitive element nor the afective element is necessary or sufcient to defne the condition on its own. I propose that this can be achieved by drawing an analogy with addiction, where both conditions can be seen as stemming from and maintained by an all-consuming fxation that permeates individuals’ lives and profoundly infuences their behaviors. In Anorexia Nervosa, this fxation manifests as a pervasive preoccupation with body size and weight. What distinguishes these behaviors is their internal self-endorsement, aligning with the well-documented ego-syntonic nature of Anorexia Nervosa: suferers perceive these behaviors as consistent with their feelings, values, and ideals, making them resistant to change. Understanding Anorexia Nervosa within the framework of addiction, particularly by recognizing the pivotal role of ego-syntonic fxation, allows for a more comprehensive approach to the disorder that sheds light on its high resistance to treatment and the challenges faced in clinical interventions.