Retired U.S. Army Sgt. 1st. Class Vernard T. Hines, comedian, speaks to Soldiers about substance abuse during resiliency training at Joint Base Langley-Eustis, Va., Aug. 30, 2017. Having suffered from post-traumatic stress disorder and substance abuse himself, Hines, now known as the Laugh Therapist, discovered the power of laughter when speaking about serious issues in his own life. He now uses his form of therapy to help others going through hard times. (U.S. Army photo by Spc. Wilmarys Roman Rivera)