(2014) Throughout human history, the world's population had grown slowly and by the beginning of the 20th century was only 1.6 billion people. Today, after only 110 years, the world's population has surpassed 7.1 billion people.
This e-newsletter is the first in a series funded by the University of Michigan Demography Center.
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[title] => TRA01-2007-Healthy-Aging
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[caption] => Today’s Research on Aging, Issue 1, March 2007
Program and Policy Implications
Healthy Aging
In nearly all biological organisms—from yeast to flies to humans—aging is linked to natural declines in physical and mental functions. Social, biological, and other scientists have long been interested in identifying genetic and behavioral factors that could help humans live longer or retain their physical and mental capabilities in old age.
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(2010) With almost half of the world's population under age 25, investments in young people are vital to improve economic and social outcomes and achieve the Millennium Development Goals (MDGs).
(2013) With technology producing more and cheaper ways to determine the sex of a fetus, fewer girls are being born—an estimated 1.5 million of them every year. They are sometimes referred to as the "missing" girls, the ones who were never born because of the premium some societies place on boys.
Population Bulletin, vol. 63, no. 4: Rethinking Age and Aging
(December 2008) According to the United Nations (UN), "Population ageing is unprecedented, without parallel in human history and the twenty-first century will witness even more rapid ageing than did the century just past."