Staff Sgt. Michaela Chevalier, 8th Medical Operations Squadron physical therapy technician, teaches a South Korean Korea air force pilot how to stretch his back during a training session at Kunsan Air Base, South Korea, Aug. 9, 2019. Pilots often suffer from neck and back pain from flying for prolonged hours wearing their equipment. (U.S. Air Force photo by Senior Airman Stefan Alvarez)
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