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December 24, 2011

Medscape Medical News Reports Cannabis Increases Psychosis Risk

by nampadmin

Cannabis use significantly increases the risk for incident psychotic symptoms in individuals with no prior history of psychotic experiences.

In persons with evidence of psychosis, cannabis use increases the persistence of these symptoms, according to researchers from the University of Maastricht in The Netherlands, who have done much of the existing work in the area of cannabis and psychosis.

It has been known for many years that persons with schizophrenia or other psychotic illness use more cannabis than the general population, and other work has shown that individuals using cannabis during adolescence and early adulthood have a higher risk of developing psychotic symptoms. It remains unclear, however, whether the association between cannabis and psychosis is causal or whether an underlying genetic predisposition for psychosis may prompt cannabis use as a way of self-medication. A second issue is whether cannabis impacts on persistence rates of psychosis and which biological mechanisms may underlie this process.

Read more Cannabis use Increases Psychosis Risk.

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