Teen marijuana use has hit its lowest point in over three decades, a new study reveals, defying concerns that legalization might spur a rise in use among young people. The University of Michigan’s ...

Marijuana has emerged as one of the most commonly used illicit substances among adolescents in the United States. Given the rising number of states legalizing recreational marijuana for adults and the ...

Using a national survey of 88,183 adolescents in grades nine to 12, findings show marijuana use declined from 23.1% in 2011 to 15.8% in 2021, with first-time use before age 13 dropping from 8.1% to ...

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The federal government has changed its view of marijuana’s dependence and abuse risks, causing some confusion about what that means for Americans. Like heroin, ecstasy and LSD, marijuana was formerly ...