One thing is for certain it's not the drugs that causes the problems. It's being 250 pounds + most of your life, and consuming the food content of three people by the time their 40.
There's loads of evidence that says high bodyweight, high test levels either artificial or natural, and eating a 5-6000 calories a day is the surest way to shorten your life.
It's common sense if you smoke, drink, and live on fried chicken you won't live to long either, if you refute this your simply ignorant end of story.