Cannabis and driving
Impairment affects more than how someone feels, and combining substances can add risk.
Driving depends on coordination, attention, judgment, and quick reactions. Cannabis can interfere with these abilities by slowing responses, affecting decisions, and changing perception. The CDC notes that using cannabis together with alcohol or other substances can increase impairment.
A THC test result or concentration does not translate neatly into one person’s driving performance. This makes simplistic claims about being safe to drive unreliable. Feeling familiar with a product also does not measure the skills needed to respond to an unexpected road hazard.
The CDC’s safest option for someone who intends to drive is to avoid alcohol and drugs, including cannabis. If impairment is possible, arrange transportation with a sober driver, taxi, or rideshare. This guide does not provide a waiting period or a self-test for driving.
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CDC: Cannabis and drivingSources were reviewed on the date above. This guide is general education, not individual medical or legal advice. Details can change; read the current original source.