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"The first 1000-year-old is probably only ~10 years younger than the first 150-year-old."–Aubrey de Grey, 2005 [1]. In the life extension movement, longevity escape velocity (LEV), actuarial escape velocity [2] or biological escape velocity [3] is a hypothetical situation in which one's remaining life expectancy (not life expectancy at birth) is extended longer than the time that is passing.
Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).
That was the life expectancy at birth, which was skewed by high infant and adolescent mortality. The life expectancy among adults was much higher; [20] a 21-year-old man in medieval England, for example, could expect to live to the age of 64. [21] [20] However, in various places and eras, life expectancy was noticeably lower. For example, monks ...
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This is especially true for Healthy life expectancy, the definition of which criteria may change over time, even within a country. For example, Canada is a country with a fairly high overall life expectancy at 81.63 years; however, this number decreases to 75.5 years for Indigenous people in the country. [4]
List of British regions by life expectancy; List of U.S. congressional districts by life expectancy; List of U.S. counties with longest life expectancy; List of U.S. counties with shortest life expectancy; List of U.S. states and territories by life expectancy; List of U.S. states by changes in life expectancy, 1985–2010
Life expectancy by world region, from 1770 to 2018. This is a list of countries showing past life expectancy, ranging from 1950 to 2015 in five-year periods, as estimated by the 2017 revision of the World Population Prospects database by the United Nations Population Division. Life expectancy equals the average number of years a person born in ...
The reliability theory of aging is an attempt to apply the principles of reliability theory to create a mathematical model of senescence.The theory was published in Russian by Leonid A. Gavrilov and Natalia S. Gavrilova as Biologiia prodolzhitelʹnosti zhizni in 1986, and in English translation as The Biology of Life Span: A Quantitative Approach in 1991.