Senior Airman Haylley Carlson, 28th Medical Operations Squadron physical therapy technician, operates the cervical traction machine on Staff Sgt. Janet Schreiber, 28th Maintenance Squardon aircraft structural maintainer, at the physical therapy center on Ellsworth Air Force Base, S.D., Jan. 26, 2012. The cervical traction treatment is designed to be painless and ranges in duration depending on patient’s injuries. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)