Staff Sgt. Kim Munoz, 3rd Medical Group Otolaryngology technician and Airman 1st Class Matthew Kenneson, 3rd Medical Group surgical service technician, test a Balance Manager, a machine that is used to give Postureography tests, which test assess a patient’s equilibrium and ability to balance, at Elmendorf Air Force Base, Alaska, June 3, 2010. (U.S. Air Force photo/Airman 1st Class Jack Sanders)