... nature. A steroid is a substance derived from cholesterol. It is similar to the male hormone testosterone. A catabolic steroid break down tissue and an anabolic steroid builds up tissue. Dihydrotestosterone, Androstenedione, Clostbol, and Nandrolone are a few types of steroids that are injected or taken by pill. Athletes face enormous pressures to excel in competition. They believe winning can reap more then a gold medal. Training ... ...

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