New measures of aging may show 70 is the new 60

Is 70 the new 60? A new Stony Brook University-led study to be published in PLOS ONE uses new measures of aging to scientifically illustrate that one's actual age is not necessarily the best measure of human aging itself, but rather aging should be based on the number of years people are likely to live in a given country in the 21st Century.

The study combines the new measures of aging with probabilistic projections from the United Nations and predicts an end to population aging in the U.S. and other countries before the end of the century. Population aging -- when the median age rises in a country because of increasing life expectancy and lower fertility rates -- is a concern for countries because of the perception that population aging leads to declining numbers of working age people and additional social burdens.

According to Warren Sanderson, Professor of Economics at Stony Brook Uniersity and the lead author, this study's projections imply that as life expectancies increase people are generally healthier with better cognition at older ages and countries can adjust public policies appropriately as to population aging.

Population aging could peak by 2040 in Germany and by 2070 in China, according to the study, which combines measures of aging with probabilistic population projections from the UN. In the USA, the study shows very little population aging at all in the coming century.

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