As cannabis is legalized in Canada and parts of the United States, it’s worth looking back on the public health impact of the repeal of Prohibition laws in the United States. Grav/Unsplash

Legalizing once‑illicit substances can have a public health impact

As cannabis is legalized in Canada and parts of the United States, it’s worth looking back on the public health impact of the repeal of alcohol Prohibition in the U.S.

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