A recent study suggests that marijuana use may cause fatal car accidents. The study, released by JAMA Internal Medicine, found there were more fatalities and car accidents on April 20, a “holiday” of sorts for cannabis enthusiasts, compared to the same period of time a week beforehand and a week afterward. This study comes on the heels of an increasing push by legislators and public policy experts to determine the effects of marijuana on driving habits, and consequently, to establish an objective standard for measuring intoxication by the drug.
To measure the effect of marijuana on car accidents, the researchers gathered data on car accidents on April 13, April 20, and April 27. April 20 is widely “celebrated” by marijuana users, and 4:20 PM on that day is traditionally regarded as a time to imbibe on the once-illicit drug. Consequently, researchers looked at the number of car accidents between 4:20 PM and midnight on April 20 and compared the results to the statistics during the same time period a week earlier and a week later. The researchers compared the data over a 25-year period and in several different locations throughout the country. The results showed a 12 percent overall increase in fatal accidents between 4:20 PM and midnight on April 20. Further, the increase in car accidents was particularly notable in drivers under the age of 20. New York, along with Texas and Georgia, saw the sharpest increase in fatal car accidents on April 20.