Care of the aged is a field of medicine that focuses on the health and well-being of elderly people. Geriatrics is the branch of medicine that specializes in this area, and it involves providing medical care to elderly patients, as well as helping them to maintain their independence and quality of life. Geriatricians are trained to diagnose and treat age-related diseases, such as dementia, arthritis, and heart disease, and they also provide advice on nutrition, exercise, and other lifestyle changes that can help improve the health of elderly people. Geriatricians also work with families to ensure that elderly patients receive the best possible care.