Dr. Cagle holds adjunct professorships with Stanford University, UC Davis, and UTMB, Galveston. Dr. Cagle was a Visiting Professor at and earned an honorary Ph.D. from Fordham University and while investigating mitigating neurocognitive countermeasures to optimize long duration space crew behavioral health and performance.

After earning her undergraduate degree from San Francisco State University, Dr. Cagle earned an M.D. from the University of Washington. She completed an internship at Highland General Hospital in Oakland, Calif., and a residency in family practice at Ghent Family Medicine at Eastern Virginia Medical School in Norfolk, VA.

A retired Colonel of the US Air Force, Dr. Cagle is a recipient of the National Defense Service Medal, Air Force Achievement Medal, United States Air Force Air Staff Exceptional Physician Commendation and National Technical Association Distinguished Scientist Award, Dr. Cagle began her medical career as a certified flight surgeon. She was actively involved in mission support of aircraft providing medical support and rescue in a variety of aeromedical missions.

Dr. Cagle has contributed ongoing data to the longitudinal study on astronaut health and served as a consultant for space telemedicine. She was a member of the NASA Working Group and traveled to Russia to establish international medical standards and procedures for astronauts.