GoRe Star wrote:
I always figured it was something like Chapel being a med student, and the opportunity to serve on Enterprise as a nurse came up and she decided to take it and finish school after the five year mission.
They specifically mention she gave up a career in bio-research.
What Are Little Girls Made Of wrote:
KIRK: I understand you gave up a career in bio-research to sign aboard a starship.
Presumably a career she was in and not studying for. That would fit in with her involvement with Dr. Kory, who was a medical researcher/archaeologist.