Smokers have lower IQ

Cigarette smokers have lower IQs than smoking Non smoking, and the more a person, the lower their IQ will be recruited according to a study of more than 20,000 Israeli military.

Noted Dr. Mark Weiser and colleagues at Sheba Medical Center, Tel Hashomer, that young men smoked a pack of cigarettes per day or more had IQ scores 7.5 points lower than in nonsmokers. "Young people with lower IQ scores can be used for programs to prevent smoking to be targeted," they conclude in the journal Addiction.

Although there is evidence of an association between smoking and lower IQ, many studies on intelligence tests given in childhood, abandoned, and also have people with mental and behavioral disorders who smoke, and both tend to have rather low IQ, Weiser and his team found .

For a better understanding of the smoking-IQ relationship, the researchers looked at 2.0211 men who were 18-years-old and recruited into the Israeli military. The group does not contain all with large mental health problems, because these persons are excluded from military service.

According to the researchers, 28 percent of study participants smoked at least one cigarette a day, about three percent said they were ex-smokers, and 68 percent never smoked. The smokers had significantly lower scores of intelligence tests than non-smokers, and this remained true even after researchers concluded for socioeconomic status, how many years of formal education accounted for a recruit's father was measured. The average IQ was about 101 for the Non smoking, while smoking is 94 for men before they had begun the military.

The IQ steadily declined as the number of cigarettes smoked increased from 98 for men, The one to five cigarettes a day for up to 90 for those who smoked more than a pack per day smoked. IQ scores from 84 to 116 are shown as average intelligence.

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