Delaying pot smoking to age 17 is better for teens' brains, a new study suggests

(University of Montreal) Adolescents who smoke marijuana as early as 14 do worse by 20 on some cognitive tests and drop out of school at a higher rate than non-smokers. But if they hold off until age 17, they're less at risk.

from EurekAlert! - Social and Behavioral Science http://ift.tt/2ku4yS4