181107-F-BG120-0025
Kirk Clark, 341st Medical Operations Squadron health promotion coordinator, briefs Airmen Nov. 7, 2018, at Malmstrom Air Force Base, Mont. As a missile operations base, some Airmen can spend more than 10 hours on duty, which requires staying alert and utilizing fatigue management. (U.S. Air Force photo by Airman 1st Class Tristan Truesdell)