schizophrenia isn't the only concern with pot http://www.pnas.org/content/early/2012/08/22/1206820109 http://www.pnas.org/content/early/2012/08/22/1206820109:

schizophrenia isn't the only concern with pot http://www.pnas.org/content/early/2012/08/22/1206820109 http://www.pnas.org/content/early/2012/08/22/1206820109: "Findings are suggestive of a neurotoxic effect of cannabis on the adolescent brain"