Thanks for proving my response. http://www.cnsnews.com/news/article/barbara-hollingsworth/nih-nearly-6-million-americans-suffer-marijuana-use-disorder https://www.psychologytoday.com/conditions/cannabismarijuana No doubt Denver is ground zero! http://www.niaaa.nih.gov/news-events/news-releases/marijuana-use-disorder-common-and-often-untreated