Smoking has ill effects on IQ levels says a study.

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Smoking vs IQ Level

 

IQ VS Smoking

It was also discovered that children having behavioural issues and mental problems are more likely to smoke in teenage or youth and hence have lower IQ levels. To understand the relationship between smoking and IQ levels better, the research was conducted on Israeli militants.

Therein it was founded that non smokers had 101 IQ level scores and the people who smoked more than one packet daily had 90 as their IQ levels. Militants who smoked one to five cigarettes daily had 98 as their IQ levels. This clearly denoted that the people who did not smoke at all had much higher IQ levels than those who smoked heavily.

Big differences were also observed between the people who smoked more than one packet a day and the ones who smoked lesser. An average intelligence score falls between 84 to 116 points.However few men among them did not smoke at the age of 18 and started smoking after entering the military. Their score was around 97 points mostly, lower than the non smokers. This showed that smoking in adolescence affects the IQ levels in a major way.