181003-N-ET513-0024 NORFOLK (Oct. 3, 2018) Electronic's Technician Anthony Leonard, from Roscoe, Ill., squeezes a stress ball while donating blood aboard the aircraft carrier USS George H.W. Bush (CVN 77). The ship is in port in Norfolk, Virginia conducting routine exercises to maintain carrier readiness. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kallysta Castillo/Released)