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.”
