200128-F-TY749-0056
Tech. Sgt. Miriam Hernandez, Senior Airman Deaja Ellis and Senior Airman Duver Navarro Narvaez, 559th Aerospace Medicine Squadron aerospace and operational physiology technicians, monitor and quiz students in a hypobaric chamber Jan. 28, 2020 at Joint Base San Antonio-Randolph, Texas. Aerospace and operational physiology technicians help students mitigate mission and self-imposed stressors, such as diet and exercise habits, sleeping patterns, medications and smoking, and teach them how those factors can impact their performance. (U.S. Air Force photo by Tech. Sgt. Katherine Spessa)