Smokers have lower IQs than non-smokers

reutershealth.com — Cigarette smokers have lower IQs than non-smokers, and the more a person smokes, the lower their IQ, a study in over 20,000 Israeli military recruits suggests. The smokers had significantly lower intelligence test scores than non-smokers, and this remained true even after the researchers accounted for socioeconomic status. Feb 24, 2010 View in Crawl 4