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http://news.bbc.co.uk/1/hi/6558871.stm?lsm)
The government is assessing the impact of a new generation of drugs that are claimed to make people more intelligent.
The Department of Health has asked the Academy of Medical Sciences to assess these so-called "cognition enhancing" drugs, some of which are already being widely used in the US.
In the 1960s the self styled guru, Dr Timothy Leary, urged American youth to "tune in, turn on and drop out".
Now a new generation of so-called designer drugs are becoming available.
But instead of fuelling a new drop-out culture, they are being used by people who think they will help them do better at school and work.
One of these drugs, Modafinil, was developed to treat people who involuntarily fall asleep.
Performance enhancing drugs, good or bad? Is this an acceptable way to boost learning?