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 4.9%. In 2021, use was highest among 12th graders (22.4%) and…

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 th…