Andrew Khoury is a graduate student in exercise physiology at the Citadel in Charleston, South Carolina. He works as a cardiac rehabilitation therapist at Roper Saint Francis hospital, where he designs exercise programs to help post-heart attack and post-surgery patients recover through diet changes, medication, and regular exercise. Cardiac rehab sessions typically include a warm-up, 20-minute conditioning period involving aerobic activities, and cool-down, though plans vary based on each patient's physical limitations and are meant to be done 3-5 times per week.