Is there a relationship between eating disorder and affective disorder? New evidence from sleep recordings

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Abstract
There is evidence that patients with anorexia nervosa (particularly those who also have bulimia) and patients with affective disorder share many features. Sleep polygraph data from 20 young women with anorexia nervosa (17 also bulimic) and 10 age-matched normal women were presented. Their urinary free cortisol levels were determined, and the subjects with eating disorders were also rated for depression. The existence of a subgroup of patients who show sleep abnormalities, in addition to clinical and possibly endocrine abnormalities, that indicate concurrent affective disorder, was suggested. Several models that could account for this relationship were presented.

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