Cannabis abuse possible cause of psychosis

The risk of developing psychosis is more than tripled for those who abuse cannabis, according to results from a new twin study.

Researchers from the Norwegian Institute of Public Health (NIPH), together with colleagues from Virginia Commonwealth University, examined the relationship between cannabis and psychosis using psychiatric interviews of Norwegian twins. The interviews reveal whether the twins had symptoms of psychosis and cannabis abuse.

“Previous research has shown that patients with psychotic disorders use cannabis more often than…

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