Eating disorders are characterised by an abnormal attitude towards food that causes someone to change their eating habits and behaviour. A person with an eating disorder may focus excessively on their weight and shape, leading them to make unhealthy choices about food with damaging results to their health. Eating disorders include anorexia nervosa, bulimia and binge eating.
Sleep quality in eating disorders: new review finds significantly more sleep impairments in people with anorexia

Ellie Davis summarises a systematic review and meta-analysis that provides evidence that eating disorders are linked to sleep deficits, though the underlying factors and impact on treatment remain unclear.
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