No, marijuana doesn’t make you dumber

From Alternet“Longitudinal data just recently published online in the journal Addiction reports that pot smoking is not independently associated with adverse effects on the developing brain. A team of investigators from the United States and the United Kingdom evaluated whether marijuana use is directly associated with changes over time in neuropsychological performance in a nationally representative cohort of adolescent twins. Authors reported that “family background factors,” but not the use of cannabis negatively impacted adolescents’ cognitive performance.”

Author: S. Smith