Geriatrics is the branch of medicine dealing with the physiological and psychological aspects of aging and treatment of diseases affecting the elderly. The worldwide elderly population is growing rapidly and is expected to double to over 2 billion by 2050. In India, the elderly population is over 82 million currently and is projected to reach 177 million by 2025. Gerontology is the scientific study of the biological, psychological and social phenomena associated with aging. The objectives of geriatric care are to maintain health, detect diseases early, and prevent deterioration. Gerontological nurses help the elderly achieve optimal health through various roles including providing care, counseling, teaching, advocating, and rehabilitating.