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Younger cannabis users have reduced brain function, finds largest study yet
The largest study yet into the effects of cannabis on the brains of 18- to 36-year-olds has found that the drug can reduce brain function during cognitive tests. The findings will help people to make an informed decision about the pros and cons of using cannabis.
MRIs measured brain activity while the participants undertook seven tasks designed to test emotion, reward, motor function, working memory, language, relational or logical reasoning, and theory of mind or social information processing. The researchers found that both recent and heavy lifetime cannabis use was associated with a statistically significant reduction in brain activity only during the working memory task. Joshua Gowin, PhD, said large, long-term studies are needed to better understand how cannabis affects the brainUniversity of Colorado Anschutz Medical Campus
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