Even infrequent cannabis use by teens can impair learning skills: study

Cannabis use by teenagers — even infrequent use — can affect the skills necessary to succeed in school, according to a study by Montreal’s Ste-Justine Hospital.
Research conducted by the hospital and the Université de Montréal and published in the American Journal of Psychiatry shows that the effects of cannabis use can be observed on primary cognitive functions and seems to be more pronounced that those of alcohol.
Alcohol and cannabis use have been associat