Positive Marijuana Research Database
Magnetic Resonance Imaging (MRI) was used to search for any effects on the hippocampus, which is a region of the brain especially involved in memory as well as motion. A group of 22 older, long-term cannabis (marijuana) users with an average lifetime of 20,100 smoking episodes were compared to 26 comparison subjects with no history […]
The hippocampus is a component of the brain associated with long term memory and spatial navigation. There has been ongoing debate regarding the effect of cannabis (marijuana) on hippocampal volume, and whether or not earlier age initiation of use, or higher doses of marijuana have any effect on its size. This study matched 20 heavy […]