Schizophrenics and Marijuana Consumers

Teens who were heavy marijuana smokers, smoking every day for about three years, had a harder time doing memory tasks and had abnormal brain structure changes compared to those who had never used the drug. Researchers took non smoking teens, smoker teens, schizophrenic teens, and schizophrenic teens who smoke and performed memory tests on them and examined their brain scans.  It seems to be that schizophrenia and marijuana effect the same parts of the brain and could have similar complications.  The non-smoking teen scored 37 times better than the smoking teen and the schizophrenic teen scored 4 times better than the smoking schizophrenics.

http://www.cnn.com/2013/12/16/health/time-marijuana-brain/index.html?hpt=he_c2