There seems to be a link between developing psychosis and regular use of high-THC weed. Researchers report this in the scientific journal The Lancet Psychiatry.
The study examined the data of 901 people who had a first psychosis, compared to the data of 1237 people without psychosis from the same residential area. What turned out to be? Of the people with a psychosis, 30 percent used cannabis daily compared to only 7 percent of the people in the control group.
According to the researchers, it is likely that daily use of cannabis will increase the risk of a pychosis. However, the most relevant outcome: strong cannabis, such as that sold in Amsterdam, would increase the risk of a psychosis fivefold. This is apparent from the first study in which the THC content of the weed was included in the results. The researchers based on this cause-effect relationship even go one step further; 20 percent of the first psychoses can be prevented by not allowing the daily use of cannabis.
According to Jellinek spokesman Tom Bart, this outcome is interesting, but not a complete surprise, he explains to channel AT5. The addiction expert does indicate that the factor 'biological predisposition' plays a major role in the development of psychosis. Too little account has been taken of this important factor in the study.
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