On April 20 each year, thousands of Americans celebrate the intoxicating properties of marijuana on a popular counterculture holiday known as “4/20.” Legal marijuana sales surge in anticipation of the “High Holiday,” and college students report increased cannabis consumption on 4/20 itself.1,2 In many cities, activists and enthusiasts gather at public celebrations that feature synchronized mass consumption of cannabis at 4:20 pm.3
Staples JA, Redelmeier DA. The April 20 Cannabis Celebration and Fatal Traffic Crashes in the United States. JAMA Intern Med. 2018;178(4):569–572. doi:10.1001/jamainternmed.2017.8298
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: