[1] His hobbies included medical consulting in microgravity deconditioning and galactic cosmic radiation and personal health maintenance.

[2] Following his internship at Walter Reed, he specialized in aerospace medicine, receiving his Masters in Public Health degree from Johns Hopkins University in 1958.

In July 1962, he returned to Brooks Air Force Base where he continued his research, served as intelligence analyst for Soviet bioastronautics and was active as a NASA flight controller for the Mercury and Gemini missions.

While in the USAF he did the original research on both the extremity tourniquet and the prototype lower body negative pressure device for use in prolonged zero gravity missions.

NASA's operational lower body negative pressure device has seen use in the Soviet MIR, as well as on the shuttle and station research.

His 2004 research on space medicine was studying the effect of galactic "heavies" in the brains of mice, using iron ions and NASA's linear accelerator at Brookhaven, NY.

In June 1965, Graveline was selected with NASA's first group of scientist astronauts and assigned to Williams Air Force Base for jet pilot training.

[5] Although this was ascribed to "personal reasons," it was later disclosed in Deke Slayton's memoir that Graveline resigned due to his impending divorce.

[8] In 1987, the Vermont Board of Medical Practice suspended his license after he was unable to account for "a large number of pills of the narcotic Demerol".