Which term is the scientific study of aging?

• A. Gerontology
• B. Great-grandparenthood
• C. Brain death
• D. Functional age

Answer: (A)

Gerontology is the term for the scientific study of aging. It encompasses how aging happens biologically, how it affects cognition and behavior, and how individuals, families, and societies adapt to longer lifespans. It’s an interdisciplinary field drawing on biology, psychology, sociology, and public health to understand aging in a broad context and to inform policies and care.

The other terms aren’t fields of study: great-grandparenthood is just a family relationship, brain death is a medical determination of death, and functional age is a way to describe a person’s abilities relative to their chronological age, not the study of aging itself.