Survey suggests older folks should be warned about pot use and driving

With marijuana-related crashes on the rise, a new study suggests that prevention campaigns shouldn’t focus just on young people. A new survey from the University of Michigan found that 20% of people over age 50 who use cannabis products said they had driven shortly after using the drug, at least once in the past year. The data behind the study come from the National Poll on Healthy Aging, based at the U-M Institute for Healthcare Policy and Innovation. Dr. Erin Bonar, a professor and clinical psychologist at UofM, spoke with WWJ's Ryan Wrecker about the study. and its implications. More about the survey. (Photo: Getty Images)