Cannabis use among teens tied to poor school performance

By Rhitu Chatterjee

Published December 26, 2025 at 1:11 PM AKST

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A new study of more than 160,000 teens finds that even occasional cannabis use among 8th, 10th and 12th graders is tied to worse outcomes at school and more emotional distress.

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Rhitu Chatterjee

Rhitu Chatterjee is a health correspondent with NPR, with a focus on mental health. In addition to writing about the latest developments in psychology and psychiatry, she reports on the prevalence of different mental illnesses and new developments in treatments.