In a few weeks, first semester exams will begin on Canadian campuses. That means a lot of late nights, Starbucks, study sessions and, increasingly, the drug Adderall.

The non-medical use of drugs prescribed for ADHD is coming into the spotlight once again, as students in schools across Canada say that so-called study drugs like Ritalin and Adderall are easy to get and now commonplace features of student life.

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“Like all new technologies, cognitive enhancement can be used well or poorly,” writes Henry Greely, Stanford law professor, and Barbara Sahakian, psychiatrist at the University of Cambridge, in the journal Nature Neuroethics. “We should welcome new methods of improving our brain function.”