i read a study somewhere about HGH abnormally enlarging the heart but i dont remember if it was after prolonged use or what. alot of competitors use HGH and there have been a large number of BBs suffering from strokes and heart attacks. i would think moreso than other types of athletes. then again heart disease is the number one culprit killing folks left and right today. its not just people who are weight training or competing. alot of these folks are couch potatoes and alot of them are bankers and business men. so who knows.