Cannabis use in youth is associated with limited alterations in brain structure

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“There were no significant differences by cannabis group in global or regional brain volumes, cortical thickness, or gray matter density, and no significant group by age interactions were found. Follow-up analyses indicated that values of structural neuroimaging measures by cannabis group were similar across regions, and any differences among groups were likely of a small magnitude. In sum, structural brain metrics were largely similar among adolescent and young adult cannabis users and non-users. Our data converge with prior large-scale studies suggesting small or limited associations between cannabis use and structural brain measures in youth.”

https://www.ncbi.nlm.nih.gov/pubmed/30780151

https://www.nature.com/articles/s41386-019-0347-2

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