Gerontology is the multidisciplinary study of aging and the aging process. It encompasses various fields, including biology, psychology, sociology, medicine, public health, and social work, among others. Gerontology focuses on understanding the physical, psychological, social, and environmental factors that influence aging and the experiences of older adults.

Key aspects of gerontology include:

1. Biological Aging: Gerontology examines the biological processes of aging, including changes in cellular function, organ systems, and physiological functions that occur with age. It explores factors such as genetics, lifestyle behaviors, and environmental exposures that influence the aging process and the development of age-related diseases and conditions.
2. Psychological Aging: Gerontology investigates the psychological aspects of aging, including cognitive function, memory, personality, and mental health in older adults. It examines factors such as cognitive decline, dementia, depression, and resilience, as well as interventions and strategies to promote cognitive and emotional well-being in later life.
3. Social Aging: Gerontology explores the social dimensions of aging, including social relationships, social support, social networks, and social roles and identities in older adulthood. It examines issues such as retirement, caregiving, social isolation, ageism, and elder abuse, as well as the impact of social policies and programs on the lives of older adults.
4. Health and Longevity: Gerontology addresses health and longevity in older adulthood, including strategies for promoting healthy aging, preventing chronic diseases, managing disabilities, and optimizing quality of life in later years. It examines the role of lifestyle factors such as diet, exercise, and preventive healthcare, as well as medical interventions and palliative care for older adults with complex health needs.
5. Aging Policy and Practice: Gerontology encompasses research, policy, and practice aimed at addressing the needs and interests of older adults and promoting age-friendly communities and societies. It examines issues such as healthcare access, housing, transportation, social services, and financial security for older adults, as well as advocacy efforts to promote the rights and dignity of older individuals.

Overall, gerontology provides a comprehensive understanding of the aging process and the diverse experiences of older adults, informing efforts to promote healthy aging, enhance well-being, and address the challenges and opportunities associated with an aging population.