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Limited evidence that cannabis ‘hangover’ blunts performance

Little evidence to support 24-hour pause on safety-sensitive tasks

The first systematic review examining the phenomenon of a 'next day' hangover caused by cannabis has found scant evidence impairment exists hours after consumption.

The research, due to be published in an upcoming issue of Cannabis and Cannabinoid Research, is available online ahead of print.

While cannabis has been known to impair cognition and safety-sensitive task performance immediately after use, the question of impairment many hours or days after use has been unclear.

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