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NIDA Notes Articles: Marijuana

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Study Questions Role for Marijuana in Teen Users’ IQ Decline

August 2016
In a recent study, teens who used marijuana lost IQ points relative to their nonusing peers. However, the drug appeared not to be the culprit.

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Study Links Medical Marijuana Dispensaries to Reduced Mortality From Opioid Overdose

May 2016
Legally protected marijuana dispensaries (LMDs) were associated with lower rates of dependence on prescription opioids, and deaths due to opioid overdose, than would have been expected based on prior trends. However, LMDs also were associated with higher rates of recreational marijuana use and increased potency of illegal marijuana.

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