U.S. life expectancy has lengthened significantly for the last 60 years.
But at least part of the gains in life expectancy may be due to a change in the rate of biological aging, rather than simply keeping very sick people alive for longer, according to a study by USC and Yale University researchers.
“This is the first evidence we have of delayed ‘aging’ among a national sample of Americans,”...
Using health and nutrition data from more than 21,500 Americans, the researchers examined how biological age — relative to chronological age — changed in the U.S. from 1988 to 2010, while considering the contributions of health behaviors..."
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