Long-time cannabis use linked to psychosis

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According to findings reported online in the Archives of General Psychiatry, marijuana use at a young age significantly increases the risk of psychotic conditions in young adulthood. According to the Australian-based study, a two to fourfold greater prevalence of three different psychotic conditions was associated with a longer duration of exposure to marijuana in young adults. According to John McGrath, MD, PhD, of the Queensland Center for Mental Health Research in Wacol, and colleagues, “Apart from the implications for policy makers and health planners, we hope our findings will encourage further clinical and animal model-based research to unravel the mechanisms linking cannabis use and psychosis.” Findings from this study reinforce indications from several previous research projects on the same topic. Click here to read an article from Reuters that discusses this study more.

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