General Article Cannabis-impaired driving: here’s what we know about the risks of weed behind the wheel

Topic Selected: Cannabis Book Volume: 399

Cannabis-impaired driving: Here’s what we know about the risks of weed behind the wheel

Dina Gaid, Memorial University of Newfoundland; Jennifer Donnan, Memorial University of Newfoundland; Lisa Bishop, Memorial University of Newfoundland; Maisam Najafizada, Memorial University of Newfoundland; Maria Josey, Memorial University of Newfoundland, and Michael Blackwood, Memorial University of Newfoundland

Cannabis is the second-most widely used substance in Canada, after alcohol. While there is an in-depth understanding of the impact of alcohol on driving, cannabis is a much more complex substance and can affect consumers differently depending on the product type, amount used and a person’s potential tolerance.

This has led to a number of misconceptions about the true impact of cannabis on driving. Research has shown that Canadians perceive driving under the influence of cannabis to be less risky than alcohol, and that they are also less likely to intervene when others engage in such b...

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