93d Air Ground Operations Wing Commander Col. Paul Birch participates in a stress test during the Commander Conference at Moody Air Force Base, Ga., Feb. 7, 2019. Dr. Jannell MacAulay, mindfulness researcher and retired officer, led several volunteers through the exercise, making them stand on one leg and count backwards at intervals. (U.S. Air Force photo by 1st Lt. Faith Brodkorb)