High schoolers who perceive that their parents, siblings or friends use marijuana were much more likely to use marijuana themselves—but no more so after cannabis was legalized in the commonwealth in 2016, according to University of Massachusetts Amherst research. "It's not news that youth are influenced by peers," says Faith English, a Ph.D. candidate in the School of Public … [Read more...] about Study finds high school students no more likely to use marijuana after legalization