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Smoking 'may harm your IQ'.

SMOKING not only damages lungs and arteries, it may also lower your IQ, researchers have found.

A Scottish study revealed that people's mental faculties were reduced after a lifetime of smoking, the New Scientist magazine reported.

Lawrence Whalley, of the University of Aberdeen, studied the cognitive ability of 465 individuals, about half of whom were smokers. All had taken part in the Scottish Mental Survey in 1947 at the age of 11.

That survey did not look into smoking habits. But when the volunteers were tested again at 64 years old, smokers performed significantly worse in five mental tests than either former smokers or those who had never smoked.
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Publication:Coventry Evening Telegraph (England)
Date:Dec 9, 2004
Words:109
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