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Teen Cannabis Use Linked to Higher Risk of Psychosis

New research highlights a strong age-dependent association between adolescent cannabis use and increased psychotic disorder risk.

Cannabis Mental Health Art Concept
A study links teens' marijuana use to increased risk of psychosis, prompting some to suggest that young people delay use of the drug. Pictured: A teenage girl smokes a joint during a march in Toronto on May 5, 2018, a few months before Canada legalized marijuana. (Photo: Arindam Shivaani/NurPhoto via Getty Images)
A person prepares a marijuana cigarette in New York City on April 20, 2024.
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Overview

  • Teens using cannabis are 11 times more likely to develop psychotic disorders compared to non-users.
  • The study found no significant association between cannabis use and psychosis in young adults aged 20 to 33.
  • Increased THC potency in modern cannabis may contribute to the heightened risk observed in adolescents.
  • Researchers emphasize the need for prevention strategies targeting teen cannabis use.
  • The study's findings align with the neurodevelopmental theory that adolescence is a critical period for brain development.