Substance Use and Mental Health (image) Washington University School of Medicine Share Print E-Mail Caption Researchers have found that rates of smoking, drinking and drug use are significantly higher in those with serious psychiatric illness. Over 75 percent were regular smokers, 30 percent engaged in binge drinking and about half used marijuana and other illicit drugs regularly. Credit Washington University School of Medicine Usage Restrictions None 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.