U.S. Air Force Airman 1st Class Makenna Johnson, 633d Dental Squadron dental lab technician, holds a stress ball at Joint Base Langley-Eustis, Virginia, Nov. 4, 2024. After a phlebotomist inserted the needle, Makenna increased her blood flow with the applied pressure from her forearm into the donor bag. (U.S. Air Force photo by Airman Donnell Ramsey)