Persistent cannabis users show neuropsychological decline from childhood to midlife

 

Authors: Meier, M. H., Caspi, A., Ambler, A., Harrington, H., Houts, R., Keefe, R. S. E., McDonald, K., Ward, A., Poulton, R. and Moffitt, T. E.
"Persistent cannabis use was associated with neuropsychological decline broadly across domains of functioning, even after controlling for years of education...Impairment was concentrated among adolescent-onset cannabis users, with more persistent use associated with greater decline."