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Population ageing. Population ageing is an increasing median age in a population because of declining fertility rates and rising life expectancy. Most countries have rising life expectancy and an ageing population, trends that emerged first in developed countries but are now seen in virtually all developing countries.
In 2020, the median age of the United States is 38.8, up from 37.2 in 2010, [42] 35 in 2000, and 30 in 1980. [55] An increase in median age is seen among all ethnic groups, though European Americans are currently the oldest by that measure, followed by African Americans and Asian Americans (including Amerindians and Native Alaskans); [39 ...
Ageing (or aging in American English) is the process of becoming older. The term refers mainly to humans , many other animals , and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal . [ 1 ]
Aging has been a big focus over the past few years, with research advancing in that area along with a growing number of people looking for more insight on how to live longer, healthier lives.
e. Old age is the range of ages for people nearing and surpassing life expectancy. People of old age are also referred to as: old people, elderly, elders, seniors, senior citizens, or older adults. [ 1 ] Old age is not a definite biological stage: the chronological age denoted as "old age" varies culturally and historically. [ 2 ]
The Administration on Aging (AoA) is an agency within the Administration for Community Living of the United States Department of Health and Human Services.AoA works to ensure that older Americans can stay independent in their communities, mostly by awarding grants to States, Native American tribal organizations, and local communities to support programs authorized by Congress in the Older ...
The Study on global AGEing and adult health (SAGE) is run by the World Health Organization. An objective for SAGE is to compile comprehensive longitudinal data on the health and well-being of adult populations and the ageing process across different countries, through primary data collection, secondary data analysis and cross-study collaborations.
Gerontology (/ ˌ dʒ ɛr ən ˈ t ɒ l ə dʒ i / JERR-ən-TOL-ə-jee) is the study of the social, cultural, psychological, cognitive, and biological aspects of aging.The word was coined by Ilya Ilyich Mechnikov in 1903, from the Greek γέρων (gérōn), meaning "old man", and -λογία (), meaning "study of".