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Use of Biomarkers in Predicting Health and Mortality

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Biomarkers, or biological indicators, are increasingly employed in empirical studies of human populations to understand physiological processes that change with age, diseases whose onset appears linked to age, and the aging process itself.

Most U.S. Workers Still Driving Alone

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(2008) With gas prices soaring, there are reports of more Americans using carpools, public transportation, bikes, and running shoes to make their daily commutes.