Second Lt. Denise Johnson, 359th Aerospace Medicine Squadron aerospace physiologist, monitors students in a hypobaric chamber Jan. 28, 2020 at Joint Base San Antonio-Randolph, Texas. The 359th AMDS teaches more than 5,000 students each year to combat the physiological dangers of flying such as hypoxia and spatial disorientation. (U.S. Air Force photo by Tech. Sgt. Katherine Spessa)

Patient care