the study of the aging processes and individuals as they grow from middle age through later life.
It generally includes:
- the study of physical, mental, and social changes in older people as they age
- the investigation of changes in society resulting from our aging population
- the application of this knowledge to policies and programs. As a result of the multidisciplinary focus of gerontology, professionals from diverse fields call themselves "gerontologists" (http://www.aghe.org/500217)