News Release

Cannabis and driving in older adults

JAMA Network Open

Peer-Reviewed Publication

JAMA Network

About The Study: The findings of this study that included 31 participants ages 65 to 79 suggest that older drivers, even if they regularly use cannabis, show evidence of impaired driving performance after smoking cannabis. Weaving was increased and speed was decreased at 30 minutes after smoking, which was not correlated with blood tetrahydrocannabinol (THC) concentrations; subjective experience and self-reports of impaired driving persisted for three hours.

Authors: Patricia Di Ciano, Ph.D., of the Centre for Addiction and Mental Health in Toronto, is the corresponding author. 

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Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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