SAMHSA Behavioral Health Barometer. In this newly-released report, the Substance Abuse and Mental Health Services Administration (SAMSHA) provides a broad overview of behavioral health in metropolitan and nonmetropolitan areas of the U.S. with an emphasis on illicit drug, alcohol, and tobacco use, as well as the estimated percentage of people living with serious mental illness. The report includes a special focus on the misuse of prescription pain relievers, heroin use, and medication-assisted therapy (MAT) for opioid addiction. Significant rural-metropolitan differences found include past-month cigarette use among teenagers (2.8 percent urban vs. 5.1 percent rural) and past-year serious mental illness among adults aged 18 or older (4.4 percent urban vs. 5.2 percent rural).