In summary, while many in the United States think prohibition of recreational marijuana should be ended,4 this study and others suggest caution and the need for public education about the potential harms in marijuana use, including the risk for addiction. As is the case with alcohol, many individuals can use marijuana without becoming addicted. However, the clear risk for marijuana use disorders among users (approximately 30%) suggests that as the number of US users grows, so will the number of those experiencing problems related to such use. This information is important to convey in a balanced manner to health care professionals, policy makers, and the public.
