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July 7, 2015 02:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/ldERD7IRxco/scientists-show-human-aging-rates-vary-widely
Scientists Show Human Aging Rates Vary Widely
HughPickens.com writes: Ever notice at your high school reunions how some classmates look ten years older than everybody else — and some look ten years younger. Now BBC reports that a study of people born within a year of each other has uncovered a huge gulf in the speed at which human bodies bodies age. The report tracked traits such as weight, kidney function and gum health and found that some of the 38-year-olds in the study were aging so badly that their "biological age" was on the cusp of retirement. "They look rough, they look lacking in vitality," says Prof Terrie Moffitt. The study says some people had almost stopped aging during the period of the study, while others were gaining nearly three years of biological age for every twelve months that passed. "Any area of life where we currently use chronological age is faulty, if we knew more about biological age we could be more fair and egalitarian," says Moffitt. The researchers studied aging in 954 young humans, the Dunedin Study birth cohort, tracking multiple biomarkers across three time points spanning their third and fourth decades of life. They developed and validated two methods by which aging can be measured in young adults, one cross-sectional and one longitudinal. According to Moffit the science of healthspan extension may be focused on the wrong end of the lifespan; rather than only studying old humans, geroscience should also study the young. "Eventually if we really want to slow the process of ageing to prevent the onset of disease we're going to have to intervene with young people."Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/ldERD7IRxco/scientists-show-human-aging-rates-vary-widely
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