My research project study the hedonic and rewarding properties of various kinds of Anabolic Androgenic Steroid (AAS). The results we obtained from this experiment are of great importance in the biomedical field because adult athletes and more recently, adolescents are known to abuse of these substances. It is well known that consumption of anabolic steroids produce some kind of side effects as anxiety- like disorders and aggressiveness among other effects. In our experiment we found that two classes of AAS (Class I and Class II) caused hedonia in adult mice, but Class III, did not produce any effect. These results also contribute to social and behavioral sciences and in the future, according to these results and other experiments to be done, will be of great benefit to the human population and to the scientific community.