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 #4 All (3) Like (3) Apr 21, 2022 Opi_Kid_Rock Bluelighter · From Lost. Always have been it seemed. Messages 937 Reaction score 743 Points 95 Apr 21, 2022 Fourofakind Bluelighter · From Northwest of Mexico Messages 66 Reaction score 50 Points 30 Apr 21, 2022 thegreenhand Bluelight Crew · From a wooded hollow Messages 4,682 Reaction score 6,045 Points 170 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)