More Americans are now daily weed smokers than daily drinkers. To better understand this public health experiment, we turn to Canada, which has federally legalized marijuana.

This episode was produced by Avishay Artsy, edited by Amina Al-Sadi, fact-checked by Laura Bullard, engineered by Andrea Kristinsdottir and Patrick Boyd, and hosted by Sean Rameswaram.

Transcript at vox.com/today-explained-podcast

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An unlicensed smoke shop selling marijuana in New York City. Photo by Deb Cohn-Orbach/UCG/Universal Images Group via Getty Images.

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