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Humans Probably Can't Live Longer Than 150 Years, New Research Finds

jeudi 27 mai 2021, 21:25 , par Slashdot
Science is once again casting doubt on the notion that we could live to be nearly as old as the biblical Methuselah or Mel Brooks' 2,000-year-old man. From a report: New research research [PDF] from Singapore-base biotech company Gero looks at how well the human body bounces back from disease, accidents or just about anything else that puts stress on its systems. This basic resilience declines as people age, with an 80-year-old requiring three times as long to recover from stresses as a 40-year-old on average. This should make sense if you've ever known an elderly person who has taken a nasty fall. Recovery from such a spill can be lif- threatening for a particularly frail person, whereas a similar fall might put a person half as old out of commission for just a short time and teenagers might simply dust themselves off and keep going.

Extrapolate this decline further, and human body resilience is completely gone at some age between 120 and 150, according to new analysis performed by the researchers. In other words, at some point your body loses all ability to recover from pretty much any potential stressor. The researchers arrived at this conclusion by looking at health data for large groups from the US, the UK and Russia. They looked at blood cell counts as well as step counts recorded by wearables. As people experienced different stressors, fluctuations in blood cell and step counts showed that recovery time grew longer as individuals grew older. 'Aging in humans exhibits universal features common to complex systems operating on the brink of disintegration,' Peter Fedichev, co-founder and CEO of Gero, said in a statement.

Read more of this story at Slashdot.
rss.slashdot.org/~r/Slashdot/slashdot/~3/gfLrjjFh2HY/humans-probably-cant-live-longer-than-150-years...
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