Steroids will fuck you up if you abuse them. I know people who took crazy amounts of juice and ended up with enlarged hearts, and high blood pressure in the lungs. But lets be honest those one's that wind up fucked up abused the shit. Taking gear in moderation can't be all that bad. Just like someone who smokes 5 packs of ciggarettes a day is more than likely they are going to get lung cancer, but someone who smokes a half a pack a day may never have anything wrong with them. If you abuse them for long periods of time your sealing your fait, take them correcty I feel you will be ok.