Study Finds Alcohol 10 Times More Deadly Than Cannabis on the Road

Researchers who examined drug tests from drivers involved in more than 3,600 auto crashes have found that alcohol is about ten times more likely to cause a fatal crash than cannabis.

In a study published earlier this month in the journal PLOS-One, scientists at the University of Lyon looked at data from all fatal accidents that occurred in France during 2011. They estimated the heightened risk of driving under the influence of various substances and found that “drivers under the influence of alcohol are 17.8 times more likely to be responsible for a fatal accident,” when compared to completely sober drivers. Drivers under the influence of cannabis, by contrast, are 1.65 times more likely to be responsible for causing a fatal accident.

Those findings are in line with most recent studies of alcohol and cannabis and driving risk. Earlier this year David Bienenstock investigated the

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