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Anorexia is a symptom, not a diagnosis. The symptom also occurs in animals, such as cats, [1] [2] dogs, [3] [4] cattle, goats, and sheep. [5] In these species, anorexia may be referred to as inappetence. As in humans, loss of appetite can be due to a range of diseases and conditions, as well as environmental and psychological factors. [2] [4]
Anorexia nervosa (AN), often referred to simply as anorexia, [12] is an eating disorder characterized by food restriction, body image disturbance, fear of gaining weight, and an overpowering desire to be thin. [1] Individuals with anorexia nervosa have a fear of being overweight or being seen as such, despite the fact that they are typically ...
Research has found comorbidity between an eating disorder (e.g., anorexia nervosa, bulimia nervosa, and binge eating) and OCD does not impact the length of the time patients spend in treatment, [12] but can negatively impact treatment outcomes. [68] For children with anorexia, the only well-established treatment is the family treatment-behavior ...
Anorexia Nervosa is a psychological disorder characterized by extremely reduced intake of food. People with anorexia nervosa tend to have a low self-image and an inaccurate perception of their body. Common behaviors and signs of someone with AN: Forcing oneself to vigorously exercise even in adverse conditions or when their health does not ...
The activity-based anorexia model has been one of the most suitable animal models when studying anorexia nervosa (AN). [83] The important behavioral aspects of AN, the drive for activity, the restricted food intake during hunger, and other physiological consequences of malnutrition, are all reproduced in this model. [ 84 ]
This type of scarring is considered one of the physical indicators of a mental illness, and Russell's sign is primarily found in patients with an eating disorder such as bulimia nervosa, purging disorder, or anorexia nervosa. It is almost always associated with eating disorders and is the most characteristic skin condition indicative of purging.
Atypical anorexia was not described in earlier editions of the DSM, which included a requirement that person to have a body weight no higher than 85% of normal. [4] Patients with atypical anorexia were diagnosed with the DSM-4 qualification "eating disorder not otherwise specified" (EDNOS) until the DSM-5 was released in 2013. [4]
The National Association of Anorexia Nervosa and Associated Disorders (ANAD) is the oldest organization aimed at fighting eating disorders in the United States. ANAD assists people struggling with eating disorders such as anorexia nervosa and bulimia nervosa and also provides resources for families, schools and the eating disorder community.