gerontology
Pronunciation: /ˌjerənˈtäləjē
noun
the scientific study of old age, the process of aging, and the particular problems of old people.
Origin
early 20th century: from Greek gerōn, geront- 'old man' + -logy.
___.___.___.___.___.___
Charles chose to specialize in gerontology. He wasn't so much interested in old people as he was in trying to avoid someday being old himself.