Even a little marijuana may change teen brain, study finds

Image courtesy of the Journal of Neuroscience

Researchers say even one or two joints (marijuana cigarettes) cause changes in areas of the brain involved in emotion-related processing, learning and forming memories.

The study, which looked at the brains of 46 14-year-old girls and boys from Ireland, England, France and Germany, found that teenagers who reported using recreational marijuana just once or twice displayed increased volume on MRI images in numerous brain regions involved in emotion-related processing, learning and forming memories. The results of the study were published Monday in the Journal of Neuroscience.

Read more… (NBC News)

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