Capt. Daniel Gibson, 92nd Medical Operation Squadron psychologist, and Staff Sgt. Marisa Prokarym, 92nd Medical Operation Squadron NCO in charge Alcohol Drug Abuse Prevention Treatment, place a Nexxus Biotrace headpiece on Staff Sgt. Donald Durst, 92nd Aerospace Medicine Squadron aerospace medical technician, May 4, 2018 at Fairchild Air Force Base, Wash. The equipment allows patients to see how their body is responding to both physical and mental stress. (U.S. Air Force photo by Staff Sgt. Samantha Krolikowski)