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Types of Eating Disorders

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Types of Eating Disorders

Anorexia Nervosa

Anorexia Nervosa is characterized by the refusal to eat. It can affect anyone of any gender or age but disproportionately affects young women in their late teens and early twenties.

There are four criteria that must be present to achieve a diagnosis of Anorexia Nervosa. First a person must refuse to maintain body weight over a minimal normal weight for age and height or have a failure to make expected weight gain during a defined period of growth, resulting in a body weight 15% lower than expected. Second, the person must experience intense fear of gaining weight or becoming fat, even though underweight. Third, the person must have a disturbance in the way his or her body weight, size, or shape is experienced and also experience undue influence of body weight, or shape on self-evaluation, or denial of the seriousness of the current body weight. Finally, amenorrhea must be present. Amenorrhea is the absence of at least three consecutive menstrual cycles when otherwise expected to occur.

Bulimia Nervosa

Bulimia Nervosa is characterized by cyclical bingeing and purging episodes. Bingeing is defined as the consumption of more food than most other people would eat. Bulimia Nervosa exists when bingeing and compensatory behaviors occur on average 2 times weekly or more for a period of at least 3 months.

People with Bulimia may engage in a variety of either purging or non-purging behaviors such as vomiting, using laxatives, using diuretics, using enemas, fasting, or exercising excessively. Bulimic bingeing and purging cycles are often conducted in secret because of the shame and disgust associated with the process.

Binge Eating

Binge Eating Disorder (BED) is newly-recognized and is characterized by recurrent episodes of binge eating that occur twice weekly or more for a period of at least six months.

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