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 #1 All (3) Like (3) Apr 21, 2022 nznity Bluelighter · 31 · From Lima. Messages 7,947 Reaction score 8,884 Points 270 Apr 21, 2022 Mr. Krinkle Bluelight Crew Messages 29,730 Reaction score 30,588 Points 820 Apr 21, 2022 Electrum1 Bluelighter Messages 33,298 Reaction score 38,369 Points 445 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)