William Goins, 21st Medical Group health promotions flight commander and certified exercise physiologist, informs a patient on proper heart rate levels at the conclusion of a VO2 test inside Building 135 at Schriever Air Force Base, Colorado, Oct 25, 2018. Goins provides patients with a personalized fitness program which features daily workout routines to help them reach their fitness goals. (U.S. Air Force photo by Senior Airman William Tracy)