I Am Doing A Research Paper After Seeing The Documentary

I am doing a research paper after seeing the documentary Bigger Faster Stronger* about the potential rumors associated with androgenic anabolic steroids use as performance enhancing drugs. I am attemtpting to show that steroids might not be as bad as previously portayed by the media. A basic definition of steroids, how they work, and how anabolic steroids differ would be awesome. I am also wondering which side effects reverse after use of steroids is discontinued. I have read that testicular atrophy as welll asl many of the negative effects reverse after use. I was also wondering about the possible medical applications of anaboolic steroids. I understand that it can be used to treat weight loss in a variety of patients.