NORML Working to Reform Marijuana Laws

Study: Adolescent Cannabis Exposure Not Associated With Structural Brain Differences in Adulthood

The use of cannabis during adolescence is not associated with structural brain differences in adulthood, according to longitudinal data published in the journal Drug and Alcohol Dependence. Researchers concluded, “[T]he patterns of cannabis use typically seen in community-dwelling adolescents does not appear to have lasting effects on brain structure.”

NORML Working to Reform Marijuana Laws

Study: Marijuana Use Not Linked With Reduced Motivation

Neither the occasional nor the heavy use of marijuana by adolescents is associated with decreased motivation, according to clinical data published online ahead of print in the journal Substance Use & Misuse. Authors reported: “After controlling for confounds, no significant differences were observed between regular and light users on any motivation index.”

NORML Working to Reform Marijuana Laws

Yet Another Study Finds That Cannabis Use Is Not Independently Linked With IQ Decline

Cannabis use by teens is not independently linked with adverse changes in intelligence quotient or executive functioning, according to longitudinal data published online ahead of print in the journal Addiction. Investigators concluded, “Short-term cannabis use in adolescence does not appear to cause IQ decline or impair executive functions, even when cannabis use reaches the level of dependence.”