Age refers to the number of years a person has lived since birth. It represents the chronological measure of how old an individual is.
This term refers to the study of how individuals change and grow physically, cognitively, and socially throughout their lifespan.
This term describes a gradual decrease in cognitive abilities, such as memory and attention, that can occur with aging.
Gerontology: Gerontology is the scientific study of aging and its effects on individuals' physical, psychological, and social well-being.