U.S. Air Force Airman 1st Class Mason Morland, 4th Aircraft Maintenance Squadron weapons load crew member, sits near the pool after completing the swimming portion of a Physical Ability and Stamina Test at the Family YMCA in Goldsboro, N.C., Aug. 12, 2013. Although the test is comprised of physical exercises, it also challenged the airmen's mental resiliency. (U.S. Air Force photo by Airman 1st Class Brittain Crolley/Released)