Diagnostic Criteria for Bulimia Nervosa (DSM-5)

Bulimia nervosa is an eating disorder characterized by binge eating followed by inappropriate compensatory behaviors designed to prevent weight gain. In addition, the self-evaluation of individuals with bulimia nervosa is excessively influenced by weight and body shape. The major change in criteria for diagnosis of bulimia nervosa is reducing the binge frequency threshold from twice per week in DSM-IV to once per week in DSM-5. The other differences include the DSM-IV differentiating between purging and nonpurging type (the DSM-5 does not) and the DSM-5 specifying criteria for partial remission, full remission, and severity, while the DSM-IV does not.
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Diagnostic Criteria for Anorexia Nervosa (DSM-V)

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Anorexia nervosa is a severe psychiatric disorder characterized by starvation and malnutrition, a high prevalence of coexisting psychiatric conditions, marked treatment resistance or no response to treatment, frequent medical complications, and a substantial risk of death.

DSM-V Diagnostic Criteria for Insomnia

The American Academy of Sleep Medicine defines insomnia as the subjective perception of difficulty with sleep initiation, duration, consolidation, or quality that occurs despite adequate opportunity for sleep, and that results in some form of daytime impairment.
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