Changes in the Physiology of Aging during the Twentieth Century
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One way to demonstrate how remarkable changes in the process of aging have been is to compare health over the life cycles of 3 cohorts. For the first cohort, born between 1835 and 1845 (the Civil War cohort), life was short and disabilities were common even at young ages. Other factors contributing
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美国国家经济研究局创建时间：
2005-03-01
