Researchers at the University of Michigan say more and more college students are relying on prescription drugs to get through their workload.
They say the most common 'study drugs' are ADHD medications like Adderall, and Ritalin. Some researchers estimate about 30 percent of students use stimulants non-medically.
Some college students say it helps them stay focused and concentrate while studying. But experts warn the medications are addictive and there is high potential for overdosing.