and if used to excess, which almost all these body building drugs are eventually used to, it can cause acromegaly, which can be fatal. Your body slows in producing it as you get older because you arent growing anymore. It's a regenerative hormone, but in excess, it will start the growing process again. The problem is, since your bones are fused, you wont grow in height, but all your internal organs start to grow and your bones start to grow out and you look disfigured. Most people with acromegaly die of cardiac abnormalities