U.S. Air Force Tech. Sgt. Jessica Covington, 633rd Force Support Squadron fitness center non-commissioned officer in charge, lifts weights inside the yellow line at the Shellbank Fitness Center on Langley Air Force Base, Va., June 1, 2015. Performing exercises inside the yellow line can cause damage to the mirrors when using weights improperly. (U.S. Air Force photo by Senior Airman Breonna Veal/Released)