Cannabis use among teens tied to poor school performance

By Rhitu Chatterjee

Published December 26, 2025 at 5:11 PM EST

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.

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.

See stories by Rhitu Chatterjee

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