The May 7, 2009, episode of CBS DOC DOT COM took Chief medical correspondent for the CBS Evening News, Dr. John LaPook, to a college campus where he got schooled by two students about the widespread use of ADHD meds – by kids without a diagnosis of the condition – to study, stay attentive, and sometimes just to feel good. A 2005 Web Survey found that 5% of US undergraduates reported having used stimulants over the previous year for non-medical reasons. But the real number may be much higher.