N&PD Moderators: Skorpio Forums Media, Science and Research Neuroscience and Pharmacology Discussion Long-term cannabis users showed IQ decline from childhood to midlife (mean −5.5 IQ points) JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Members who reacted to message #3 All (3) Like (3) Apr 21, 2022 Mr. Krinkle Bluelight Crew Messages 29,723 Reaction score 30,588 Points 820 G Apr 21, 2022 G_Chem Bluelight Crew Messages 7,895 Reaction score 10,456 Points 370 Apr 21, 2022 arrall Bluelight Crew · From Outer Space Messages 7,017 Reaction score 10,602 Points 320 Loading… Forums Media, Science and Research Neuroscience and Pharmacology Discussion Long-term cannabis users showed IQ decline from childhood to midlife (mean −5.5 IQ points)