Marijuana use linked to changes in the brain, research says

November 24, 2014 12:59 PM

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Marijuana use linked to changes in the brain, research says

Using marijuana daily for four years or longer may be related to certain changes in the brain, according to new research.

In the study, researchers used magnetic resonance imaging (MRI) to examine the brains of 48 adults who were chronic marijuana users, meaning they used the drug at least three times a day. Researchers also looked at 62 people who didn't use marijuana.

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