Among U.S. drivers who use both alcohol and pot, over 40% say they've driven under the influence, a new study finds.

"Alcohol and cannabis are two of the most common substances involved in impaired driving and motor vehicle crashes in the U.S.," said study author Priscila Dib Gonçalves. She is a postdoctoral fellow at the Columbia University Mailman School of Public Health in New York ...

You smoked a joint an hour and a half ago. Now it's worn off enough that you feel fine to get behind the wheel.

But you're fooling yourself, a new study says. You're likely about to drive under the influence of weed, endangering yourself and others.

Marijuana ...

The hazards of drunken driving are well known, and a new research review shows that adding pot to the mix only makes matters worse.

The analysis of 57 past studies found that the combination of alcohol and marijua...

Here's more evidence that marijuana may make driving more dangerous: As pot has been legalized in more countries and states, a greater number of people are driving intoxicated by the drug and crashing, researchers report.

THC, the active ingredient in cannabis, has been detected in twice as many injured Canadian drivers since 2018, when