Large-scale genomic studies of anorexia and bulimia are turning up clues about the conditions’ development and persistence.

Ghrelin promotes fat storage not feeding, according to a study.

A genetic predisposition toward learning poorly from negative outcomes may influence behaviors leading to weight gain, a study shows.

Mice lacking a gene implicated in human anorexia and bulimia weigh less than their littermates and display a variety of behavioral disorders.