Cannabis and older adults (VIDEO) Michigan Medicine - University of Michigan This video is under embargo. Please login to access this video. Caption Highlights from a poll report on cannabis use by people over the age of 50, from the National Poll on Healthy Aging. Features Erin E. Bonar, Ph.D., addiction psychologist and health care researcher at the University of Michigan. Credit University of Michigan Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.