CNN, that bastion of sensational and acontextual news media, has reported that Marijuana use can increase the risk of psychosis by up to 40%. I quote from the article, boldface my own: The new review suggests that even infrequent use could raise the small but real risk of this serious mental illness by 40 percent.
However, the article goes on to say:
The researchers said they couldn't prove that marijuana use itself increases the risk of psychosis, a category of several disorders with schizophrenia being the most commonly known.



