BUDAPEST, Hungary, March 9 (UPI) -- Anger, hostility and aggression may be genetic in women, research released in Budapest, Hungary, said. "Aggression and hostility are predictors of hypertension, glucose metabolism and heart diseases," said Dr. Indrani Halder of the University of Pittsburgh, who planned to present her findings at the American Psychosomatic Society's Annual Meeting in Budapest. "The genetic marker we found for hostility also may be useful for predicting a person's predisposition to such diseases," she said. Her research looked at the relationship between variations in a serotonin receptor gene and anger and hostility. Previous research has linked serotonin,...