A Quarter of Problematic Pot Users Have Anxiety Disorders, Many Since Childhood (video) Duke University Medical Center Share Print E-Mail Loading video... Caption Duke Health researchers tracked a group of children in western NC into adulthood and studied their pot use. Anxiety was a significant risk factor for persistent problematic use. Credit Duke Health Usage Restrictions Credit Duke Health Share Print E-Mail 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.