This is in part because ED cognitions serve a similar purpose to OCD obsessions and compulsions (e.g., safety behaviors as temporary relief from anxiety). Research shows OCD does not have an impact on the BMI of patients during treatment. - This is in part because ED cognitions serve a similar purpose to OCD obsessions and compulsions (e.g., safety behaviors as temporary relief from anxiety). Research shows OCD does not have an impact on the BMI of patients during treatment.
- Estimates of the prevalence of eating disorders vary widely, reflecting differences in gender, age, and culture as well as methods used for diagnosis and measurement.[14][15][16] In the developed world, anorexia affects about 0.4% and bulimia affects about 1.3% of young women in a given year.[1] Binge eating disorder affects about 1.6% of women and 0.8% of men in a given year.[1] According to one analysis, the percent of women who will have anorexia at some point in their lives may be up to 4%, or up to 2% for bulimia and binge eating disorders.
- These eating disorders are specified as mental disorders in standard medical manuals, including the ICD-10 and the DSM-5.
- Anorexia nervosa (AN) is the restriction of energy intake relative to requirements, leading to significantly low body weight in the context of age, sex, developmental trajectory, and physical health. It is accompanied by an intense fear of gaining weight or becoming fat, as well as a disturbance in the way one experiences and appraises their body weight or shape.
Bulimia nervosa (BN) is characterized by recurrent binge eating followed by compensatory behaviors such as purging (self-induced vomiting, eating to the point of vomiting, excessive use of laxatives/diuretics, or excessive exercise). Fasting may also be used as a method of purging following a binge. However, unlike anorexia nervosa, body weight is maintained at or above a minimally normal level. Severity of BN is determined by the number of episodes of inappropriate compensatory behaviors per week. - Bulimia nervosa (BN) is characterized by recurrent binge eating followed by compensatory behaviors such as purging (self-induced vomiting, eating to the point of vomiting, excessive use of laxatives/diuretics, or excessive exercise). Fasting may also be used as a method of purging following a binge. However, unlike anorexia nervosa, body weight is maintained at or above a minimally normal level. Severity of BN is determined by the number of episodes of inappropriate compensatory behaviors per week.
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