Daily use of high potency cannabis is linked to increased risk of psychosis. Individuals under 25 and those with a family or personal history of mental illness should be especially cautious.

Medical Mythbusting Commentary for December 16, 2019

Source:
Is marijuana linked to psychosis, schizophrenia? It’s contentious, but doctors, feds say yes

References:
The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study

The Health Effects of Cannabis and Cannabinoids: The Current State of Evidence and Recommendations for Research

U.S. Surgeon General’s Advisory: Marijuana Use and the Developing Brain

Insufficient evidence that medicinal cannabinoids improve mental health

Cannabinoids for the treatment of mental disorders and symptoms of mental disorders: a systematic review and meta-analysis.

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