Binge-eating disorder, hoarding disorder, and excoriation (skin-picking) will also now be legitimate disorders with which one can be diagnosed.

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Until DSM-5 -- the latest version of the psychiatric diagnostic manual -- was released this month, binge eating wasn't an official eating disorder.

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Binge-eating is a more common form of eating disorder, with about 2.8% of the population experiencing it in their lives (twice as many women as men suffer from this form).

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