Gerontology ( JERR -ən-TOL-ə-jee) is the study of the social, cultural,
psychological, cognitive, and biological aspects of aging. The word was coined
by Ilya Ilyich Mechnikov in 1903, from the Greek γέρων ( _ gérōn__ ), meaning
"old man", and -λογία ( _ -logía__ ), meaning "study of". The field is
distinguished from geriatrics, which is the branch of medicine that
specializes in the treatment of existing disease in older adults.
Gerontologists include researchers and practitioners in the fields of biology,
nursing, medicine, criminology, dentistry, social work, physical and
occupational therapy, psychology, psychiatry, sociology, economics, political
science, architecture, geography, pharmacy, public health, housing, and
anthropology.