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Marijuana seen as risk to teens’ IQ

Associated Press / August 28, 2012
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Teens who routinely smoke marijuana risk a long-term drop in their IQ, a new study suggests. The researchers didn’t find the same IQ dip for people who became frequent users of pot after 18. Although experts said the new findings are not definitive, they do fit in with earlier signs that the drug is especially harmful to the developing brain.

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