Gerontology
From Memory Alpha, the free Star Trek reference
Gerontology is the scientific study of the aging process of lifeforms.
When Ghee P'Trell was nominated for the Federation's prestigious Carrington Award in 2371, Chief O'Brien observed that she had done some amazing gerontological research, which he thought made P'Trell more likely to win the award than April Wade. (DS9: "Prophet Motive")
