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Diagnostic Features The essential feature of Primary Hypersomnia is excessive sleepiness for at least 1 month as evidenced either by prolonged sleep episodes or by daytime sleep episodes occurring almost daily (Criterion A). The excessive sleepiness must be sufficiently severe
15 min read
Individuals whose binge-eating behavior occurs only during Anorexia Nervosa are given the diagnosis Anorexia Nervosa, Binge-Eating/Purging Type, and should not be given the additional diagnosis of Bulimia Nervosa. For an individual who binges and purges but whose presentation no longer
1 min read
The lifetime prevalence of Bulimia Nervosa among women is approximately 1%-3%; the rate of occurrence of this disorder in males is approximately one-tenth of that in females. Specific Culture, Age, and Gender Features Bulimia Nervosa has been reported to occur
2 min read
A. Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following: (1) eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than
1 min read
The essential features of Bulimia Nervosa are binge eating and inappropriate compensatory methods to prevent weight gain. In addition, the self-evaluation of individuals with Bulimia Nervosa is excessively influenced by body shape and weight. To qualify for the diagnosis, the
5 min read
The following subtypes can be used to specify the presence or absence of regular use of purging methods as a means to compensate for the binge eating: Purging Type. This subtype describes presentations in which the person has regularly engaged
1 min read
Associated descriptive features and mental disorders. Individuals with Bulimia Nervosa typically are within the normal weight range, although some may be slightly underweight or overweight. The disorder occurs but is uncommon among moderately and morbidly obese individuals. There are suggestions
4 min read
Associated descriptive features and mental disorders. When seriously underweight, many individuals with Anorexia Nervosa manifest depressive symptoms such as depressed mood, social withdrawal, irritability, insomnia, and diminished interest in sex. Such individuals may have symptomatic presentations that meet criteria for
5 min read
The lifetime prevalence of Anorexia Nervosa among females is approximately 0.5%. Individuals who are subthreshold for the disorder (i.e., with Eating Disorder Not Otherwise Specified) are more commonly encountered. The prevalence of Anorexia Nervosa among males is approximately one-tenth that
3 min read
Other possible causes of significant weight loss should be considered in the differential diagnosis of Anorexia Nervosa, especially when the presenting features are atypical (such as an onset of illness after age 40 years). In general medical conditions (e.g., gastrointestinal
3 min read
A. Refusal to maintain body weight at or above a minimally normal weight for age and height (e.g., weight loss leading to maintenance of body weight less than 85% of that expected; or failure to make expected weight gain during
1 min read
Introduction The Eating Disorders are characterized by severe disturbances in eating behavior. This section includes two specific diagnoses, Anorexia Nervosa and Bulimia Nervosa. Anorexia Nervosa is characterized by a refusal to maintain a minimally normal body weight. Bulimia Nervosa is
1 min read
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