Hailee Stepp, Armed Forces Wellness Center health educator, puts a mask on U.S. Air Force Airman 1st Class Donnell Ramsey, 633d Air Base Wing public affairs journeyman, at Joint Base Langley-Eustis, Virginia, June 5, 2026. Service members receive personalized exercise recommendations based on the results of the oxygen volume submaximal test; the maximum rate of oxygen consumed by the body during intense exercise. (U.S. Air Force photo by Crista Mary Mack)