Road rage may have a physical cause

health24.com - Recurrent, unwarranted blow-ups such as road rage may have a biological basis, according to a new study.Blood tests of people who display the hostile outbursts that characterise a psychiatric illness known as intermittent explosive disorder show signs of inflammation , researchers say."What we show is that inflammation markers [proteins] are up in these aggressive individuals," said Dr Emil Coccaro, professor and chair of psychiatry and behavioural neuroscience at the University of Chicago.