Because researchers only recently began studying binge-eating disorder, they're still trying to learn more about potential causes.

As with other mental disorders, there's likely no single cause. Rather, binge-eating disorder probably arises from an interplay of biological, psychological and sociocultural factors, including family, relationships and life experiences.

Here's a closer look:

Biological.

Some people may be biologically vulnerable to developing binge-eating disorder. Both genes and brain chemicals may be involved in the disorder. In addition, researchers are studying appetite regulation of the central nervous system for clues, along with gastrointestinal changes that might shed liht on causes.

Psychological.

People with binge-eating disorder may have psychological and emotional characteristics that contribute to the disease. They may have low self-worth, for instance. They may have trouble controlling impulsive behaviors, managing their moods or expressing anger.

Sociocultural.

Modern Western culture often cultivates and reinforces a desire for thinness. Although most people who have binge-eating disorder are overweight, they're acutely aware of their body shape and appearance and berate themselves after eating binges. Some people with binge-eating disorder have a history of being sexually abused.

By Kristin Gerstley

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