Teens who smoke marijuana see their IQs drop as adults, and deficits persist even after quitting, according to a new study.
Teens who smoke marijuana see their IQs drop as adults, and deficits persist even after quitting, according to a new study.
![[New HELLIQ member]: Erik Hæreid](https://www.iqsociety.org/wp-content/uploads/2013/04/helliq.jpg "[New HELLIQ member]: Erik Hæreid")
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