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Updated: May 8, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Marijuana use is associated with inattention in men and sleep quality in women with Attention-Deficit/Hyperactivity
Christine Ly1, Jean-G Gehricke
1Department of Pediatrics, University of California, Irvine, USA.
Abstract:
The study examined the association between marijuana use, Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms, and sleep quality in 56 men and 20 women with ADHD. Participants, ages 18-45, were assessed with the Assessment of Hyperactivity and Attention, drug use survey, and Pittsburgh Sleep Quality Index. Moderate to strong correlations were found between marijuana use and inattentive symptoms in men, and marijuana use and decreased sleep quality in women. Men and women with ADHD may use marijuana for different reasons.
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