The subject of anabolic drug abuse is quite delicate and many athletes are sensitive about it. The subject is complex and despite decades of research it is difficult to assess the abuse objectively. There is no doubt that anabolic steroids have varying effects on the body. The majority of users take the drug in secrecy and to make matters worse, take multiple drugs at the same time. Further there are many drugs out on the market with unproven claims, there are just as many fake drugs and others which have contaminants. Thus, the study of anabolic steroids has proven to be difficult.
