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Genetic link to anorexia nervosa

17th March 2006

A  paper published in the Archives of General Psychiatry says that the development of anorexia nervosa (AN) is largely genetic and not linked to dysfunctional family dynamics. Researchers found that genetic factors account for 56% of the risk for developing AN.

The study included 31,406 subjects, born between 1935 and 1958; they were screened for AN and other disorders from 1999 through 2002.The heritability of AN was estimated to be 0.56.

These findings were said to be good news for patients and for families, as parents are often blamed for causing this disorder because of how they behave.


 

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