MARIJUANA - SMOKING - JOINT - WEED - AP FILE 2016.jpeg

FILE - In this April 20, 2016, file photo, a man smokes a marijuana joint at a party celebrating weed in Seattle. Legalizing recreational marijuana for U.S. adults may have led to a slight decline in teen use. That’s according to research published Monday, July 8, 2019, in JAMA Pediatrics. (AP Photo/Elaine Thompson, File)

As featured on