No Change in Hippocampus Volume With Youth Cannabis Users

Tuesday, 8 January 2019

“A number of studies have found evidence of structural brain changes in teens and young adults who smoke marijuana, however is research indicates that there are no changes into adulthood in the hippocampus (memory).”
-    Dr. David Hepburn 


Cannabis exposure, particularly heavy cannabis use, has been associated with neuroanatomical alterations in regions rich with cannabinoid receptors such as the hippocampus in some but not in other (mainly cross-sectional) studies. However, it remains unclear whether continued heavy cannabis use alters hippocampal volume, and whether an earlier age of onset and/or a higher dosage exacerbate these changes.

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