Health and Fitness Long-Term Marijuana Use Not Associated With Deficits In Cognitive Performance, Study Says by Gary Kopycinski on July 29, 2011 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 “[A]fter controlling for education and other characteristics, there were no significant differences associated with cannabis consumption”