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A person with anorexia nervosa may exhibit a number of signs and symptoms, the type and severity of which may vary and be present but not readily apparent. [24] Though anorexia is typically recognized by the physical manifestations of the illness, it is a mental disorder that can be present at any weight.
[6] [12] For example, a person with type 1 diabetes may have experienced weight loss before the diagnosis, followed by weight gain when beginning treatment with insulin. This may lead to increased body dissatisfaction and preoccupation with weight loss. [13] This increases the risk of eating disorders such as anorexia nervosa and bulimia nervosa.
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 February 2025. Mental illness characterized by abnormal eating habits that adversely affect health Medical condition Eating disorder Specialty Psychiatry, clinical psychology Symptoms Abnormal eating habits that negatively affect physical or mental health Complications Anxiety disorders, depression ...
The primary symptoms are severe wasting, ... [67] [97] Anorexia nervosa and bariatric surgery can also cause malnutrition. ... and lowers life expectancy. ...
Anorexia nervosa is one of the most difficult psychiatric disorders to treat and has a high mortality rate due to complications from malnutrition and suicide. [4] Currently there are no specific studies completed on the prognosis of atypical anorexia nervosa.
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 ]
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]
Body image disturbance (BID) is a common symptom in patients with eating disorders and is characterized by an altered perception of one's own body.. The onset is mainly attributed to patients with anorexia nervosa who persistently tend to subjectively discern themselves as average or overweight despite adequate, clinical grounds for a classification of being considerably or severely ...