New research on Swedish twins—published in the March issue of the U.S. journal, Archives of General Psychiatry—suggests that anorexia nervosa may be inherited, and linked with anxiety and/or depression early in life. Noting that this is not a "disorder of choice," researchers posit that a genetic predisposition may be triggered by environmental factors. Anorexia has highest death rate of any mental illness; this study may influence identification and treatment.