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The article basically says vet researchers tested the IQ's of more than 20,000 healthy men between the ages 18 and 21 who are serving in the Israel military or had recently completed their service 28% of the men in this sample small wild 3% were former smokers and 60% had never smoked that average IQ of the smokers were 94 compared with 101 among the non-smokers men who smoked more than a pack of cigarettes a day had an average IQ of 90 although a normal IQ falls between 84 and 116 the difference observed in this study is still quite considered significant!
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