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No one can state with certainty what causes eating disorders. As with other behavioral disorders, anorexia, bulimia, and other eating disorders most likely result from a complex interaction of biological, psychological, family, genetic, environmental and social factors. Possible causes of eating disorders include: Genetics and biology.
Eating disorders such as anorexia nervosa, bulimia nervosa and binge-eating disorder can influence hormone levels causing physical and psychological problems.Unhealthy eating styles can affect hormones that regulate metabolism, fertility and pregnancy.ating disorders such as anorexia nervosa, bulimia nervosa and binge-eating disorder can influence hormone levels causing physical and psychological problems.