Harvard Study: Cannabis doesn‘t cause Schizophrenia

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Harvard Study: Cannabis doesn‘t cause Schizophrenia

One more cannabis myth has been busted thanks to the academic minds over at Harvard University. They found that long term use of cannabis is highly unlikely to cause schizophrenia.

One more cannabis myth has been busted thanks to the academic minds over at Harvard University. They found that long term use of cannabis is highly unlikely to cause schizophrenia.

With sweeping global reform taking place, cannabis goes mainstream. Especially in the US, where two states have already legalised its recreational use for adults. This has sparked worries as to how it will effect teenagers, as some studies have suggested that there is a correlation between teenage cannabis use and a later diagnosis of schizophrenia. However, this claim has been widely disputed as mere fear mongering by prohibitionists. Only recently, team from Harvard University set out to further investigate whether cannabis really can cause schizophrenia.

In this research, it was analysed wether cannabis users develop higher rates of schizophrenia compared to people who don‘t use the plant.

They recruited 282 subjects and divided them into four groups: a control group with no lifetime history of psychological illness, no cannabis use, or any other drug use; a control group with lifetime history of no psychological illness, heavy cannabis use during adolescence but no other drug use; a group of schizophrenic patients with no lifetime history of cannabis, or any other drug use; and a group of schizophrenic patients with a history of heavy adolescent cannabis use, but no other drug use.

Information about the family members of each group were then obtained and analysed, comparing the information to the test subject as well as how the data compared to the other groups. Enough information was gathered about cannabis use, family history and resulting patterns in the development of schizophrenia to produce a statistically significant result. It was concluded that it is a genetic family disposition that is likely to cause schizophrenia in cannabis users, not the cannabis.

Another marijuana myth has been dispelled!