Gerontology is the study of the social, cultural, psychological, cognitive, and biological aspects of Ageing. It is the study of the aging processes and individuals as they grow from middle age through later life. It includes:
• the study of physical, mental, and social changes in older people as they age
• the investigation of the 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”

• Gerontologists are health care professionals who specialize in the field of aging related dimensions of change over the lifespan.
• Geriatrician: is a medical doctor who specializes in the diagnosis, treatment, and prevention of disease and disability in older adults.
• Geriatric physicians are primary care doctors who are specially trained in the aging process.
• Geriatricians focus on all aspects of health care and work as part of a health care team to address issues that affect the elderly. The geriatric health care team focuses on many aspects of the patient’s life, including his or her social support (e.g., spouse, children, other relatives), living conditions and home life, and community.