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by citrablue 2919 days ago
I just did a cursory review of some papers, and it seems like cannabis can induce psychosis. It looks like there's somewhere around 1.5-2.5x increased chance of psychosis diagnosis for cannabis consumers, although age and family history of schizophrenia matter.

From the NIH site on psychosis[0], about 3% of the US population in their lifetime[1]. About 100k adolescents annually have an episode.

For comparison, alcohol induced psychosis is common. Dependent alcoholics men face an 8x increase in risk; women see a 3x increase.[2]

[0] https://www.nimh.nih.gov/health/topics/schizophrenia/raise/r...

[1] worth noting that psychosis is not a "permanent" condition.

[2] https://en.wikipedia.org/wiki/Substance-induced_psychosis