Harvard Scientists Studied the Brains of Pot Smokers, and the Results Don’t Look Good

The news: Every day, the push toward national legalization of marijuana seems more and more inevitable. As more and more politicians and noted individuals come out in favor of legalizing or at least decriminalizing different amounts of pot, the mainstream acceptance of the recreational use of the drug seems like a bygone conclusion. But before we can talk about legalization, have we fully understood the health effects of marijuana?

According to a new study published in the Journal of Neuroscience, researchers from Harvard and Northwestern studied the brains of 18- to 25-year-olds, half of whom smoked pot recreationally and half of whom didn’t. What they found was rather shocking: Even those who only smoked few times a week had significant brain abnormalities in the areas that control emotion and motivation.

“There is this general perspective out there that using marijuana recreationally is not a problem — that it is a safe drug,” said Anne Blood, a co-author of the study. “We are seeing that this is not the case.”

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