Are Mind-Enhancing Drugs a Dangerous Fad or a Great Way to Get Ahead?

By Jeremy Laurance, Independent UK. Posted June 23, 2009.

"Suppose a university were to set out deliberately to improve the mental capacities of its students. Suppose they further claimed that not only could they achieve this but that their students would be more intelligent and mentally alert than any in history. We might be sceptical but if the claims could be sustained should we be pleased?"

His answer is an unequivocal yes. He concludes that it is unethical to stop healthy people taking Ritalin to enhance their mental performance.

But in total disagreement, Professor Anjan Chatterjee from the University of Pennsylvania argues in the BMJ that there are too many risks. In the US, the drug carries a "black box" warning, the most serious, because of its high potential for abuse, serious adverse risks on the heart and the risk of sudden death.

He adds that there are cognitive trade-offs in taking Ritalin, with a loss of creativity, and points out that "being smarter does not mean being wiser." He raises the spectre of children at top preparatory schools taking Ritalin in "epidemic proportions" and pilots, police and doctors being pressurised to take it when on-call.

Progress often carries risk, says Professor Harris. The development of "synthetic sunshine" (firelights, lamplight and electric light) could have forced people to work through the night. The answer was not to ban it but to introduce laws to regulate working hours. "The same is or will be true of chemical cognitive enhancers," he concludes.

A stimulating debate: The pills in question

Ritalin

A stimulant drug introduced in 1956 for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in children, it has become increasingly widely used, especially in the US. In recent years, reports have emerged of it being abused by students seeking aids to help them through their exams.

Amphetamines

The stimulant was first synthesised more than a century ago and has been used and abused to boost energy, increase wakefulness and prolong endurance. Its users have been as diverse as long distance lorry drivers wanting to ward off drowsiness and women trying to lose weight. Today it is prescribed for ADHD and narcolepsy, and has been investigated for its role in helping stroke victims re-learn motor skills.

Donepezil

Scientists in aviation medicine and in the military have been examining medicines which might increase alertness and concentration to minimise risk of pilot error and maximise endurance. Donepezil, used to treat of dementia, has been shown to boost the performance of pilots on flight simulators, especially in emergencies.

Modafinil

Modafinil, a drug used to treat the sleep disorder narcolepsy, has also been tested on pilots and other members of the armed forces. While commercial pilots have strict rules governing flying time and rest periods, fighter pilots may be called to action at a moment's notice. Tests on helicopter pilots flying on simulators who had been deprived of sleep showed the drug boosted performance.

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