New Study Finds Cannabis Use Doesn’t Lower IQ in Children

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New Study Finds Cannabis Use Doesn’t Lower IQ in Children

A new study outcannabisjoint of the University College of London has found that consuming cannabis has no impact on a child’s IQ.

The study, which included 2,612 children, examined IQ scores at age 8, and again at 15. They found “no relationship between cannabis use and lower IQ at age 15,” even when other factors such as alcohol use, cigarette use and maternal education were taken into account. Researchers found that even heavy cannabis had no effect on a person’s IQ.

Researchers did find, however, that alcohol is “strongly associated with IQ decline”. Besides alcohol, researchers found “No other factors were found to be predictive of IQ change.”

“This is a potentially important public health message- the belief that cannabis is particularly harmful may detract focus from and awareness of other potentially harmful behaviours”, lead author Claire Mokrysz said in a press release.

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The results of this research were presented over the weekend at the annual meeting of the European College of Neuropsychopharmacology.



  • victor_vicious
    October 23, 2014

    None of the s called study’s had shown any impairment, now we have one that shows no impairment, can’t wait to hear what they say next. VV

  • Janet Evans
    October 26, 2014

    I have 1 thing to say. 18 years old. Able to fight the wars your country puts u in the position to fight. Able to vote since 1976. Able to vote; able to smoke. Stand up youth of America. Stand up to the lies of the main stream media. Able to vote. By my conscience.; able to smoke!

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