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What is the word for taking care of old people?

According to the U.S. Census Bureau, the population aged 65 and older is projected to nearly double from 56 million in 2020 to 91 million by 2050. This demographic shift makes understanding the proper terminology, including **what is the word for taking care of old people**, more important than ever. The primary terms used are *eldercare*, *geriatric care*, and *gerontology*, each with distinct meanings and applications.