Students are mimicking ADHD symptoms in a bid to get their hands
on a drug that can help them improve their concentration.
Ritalin is most often prescribed to sufferers of attention
deficit hyperactivity disorder (ADHD). But a handful of young
adults have also been using it as a "brain booster" to give them an
edge over their competition.
The white circular tablets contain the stimulant methylphenidate
and work by activating parts of the brain that allow concentration,
"dimming" others.
For a child with ADHD, Ritalin stimulates the production of
dopamine - the brain chemical involved with motivation - and helps
them to focus on the task at hand.
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http://www.straitstimes.com/breaking-news/singapore/story/students-fake-adhd-symptoms-get-brain-booster-drug-20131021