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This page was last edited on 27 October 2024, at 01:44 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Biodemographic studies have found that even genetically identical laboratory animals kept in constant environment have very different lengths of life, suggesting a crucial role of chance and early-life developmental noise in longevity determination. This leads to new approaches in understanding causes of exceptional human longevity.
This page was last edited on 27 October 2024, at 01:45 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
World Bank Group (2022) Countries and territories 2022 Historical data recovery from COVID-19: 2019→2022 All Male Female Sex gap 2014 2014 →2019
World Health Organization (2019) Countries Life expectancy at birth HALE at birth Life expectancy at age 60 HALE at age 60 All M F FΔM Δ 2000 All M F FΔM Δ
UN: Change of life expectancy from 2019 to 2023; Countries and territories 2023 Historical data Recovery from COVID-19: 2019→2023 All Male Female
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]
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).