Cannabis found more harmful to cognition than alcohol in teens

Abstract

Lasting effects of adolescent cannabis use are even more pronounced than those for alcohol, researchers suggest in a new study of the role of impaired cognition on substance use. According to the study, published in the February issue of the American Journal of Psychiatry, both alcohol and cannabis misuse are related to impaired cognition, but is this cause or correlation? To infer cause, researchers in general use four theoretical models.