The use of prescribed stimulants without medical reason to do so creates an imbalance in the ability of the student body and gives those students an unfair advantage compared to those who do not use cognitive enhancing medications, and an even greater advantage over those who rely on such stimulants to be able to function at a level similar to their classmates.  If an athlete takes steroids, it is considered cheating. Why is it not cheating if a student uses a drug to score better on a test or a paper?