In the United States, it's generally understood that college kids like to party.br And according to UPI, a new study in JAMA Pediatrics says nearly a third of all college students smoke cannabis.br 62--roughly twice as many--drink alcohol.br However, the number of students who say they neither drink alcohol nor smoke weed has increased from just under 20 in the early 2000s to 28 today.br What's more, the percentage of students who have an alcohol use disorder also has declined to 10 over the same period from just under 20.