Cannabis abuse triples risk of psychosis: Study

The twin studies revealed the twin with symptoms of cannabis abuse had 3.5 times higher risk of developing psychosis-related symptoms. Our analyses showed a significant association between marijuana abuse and symptoms of psychosis in the general population, senior researcher Eivind Ystrom explained. We also tested the hypothesis that symptoms of psychosis caused cannabis abuse, but the hypothesis was less suited to the data.

Cannabis abuse triples risk of psychosis: Study

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