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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 .
The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...
Demographic dividend, as defined by the United Nations Population Fund (UNFPA), is "the economic growth potential that can result from shifts in a population’s age structure, mainly when the share of the working-age population (15 to 64) is larger than the non-working-age share of the population (14 and younger, and 65 and older)". [1]
An aging population has implications for social-welfare programs. [5] The U.S. federal social security system functions through collecting payroll taxes to support older citizens. [ 91 ] It is possible that a smaller workforce, coupled with increased numbers of longer-living elderly, may have a negative impact on the social security system.
Ageing (or aging in American English) is the process of becoming older until death.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.
Geriatrics, or geriatric medicine, [1] is a medical specialty focused on addressing the unique health needs of older adults [2] The term geriatrics originates from the Greek γέρων geron meaning "old man", and ιατρός iatros meaning "healer".
The terms "healthy ageing" [4] and "optimal ageing" have been proposed as alternatives to successful ageing, partly because the term "successful ageing" has been criticised for making healthy ageing sound too competitive. Six suggested dimensions of successful ageing include: [14] No physical disability over the age of 75 as rated by a physician;
The country's urban population more than tripled between 1981 and 2017 (from 23.8 million to 75.7 million), as Pakistan's urbanisation rate rose from 28.2% to 36.4%. Even with this, the nation's urbanisation rate remains one of the lowest in the world , and in 2017, over 130 million Pakistanis (making up nearly 65% of the population) lived in ...