We've seen dramatic increases in life expectancy over the 19th and 20th centuries, thanks to healthier diets, medical advances and many other quality-of-life improvements.
University of Illinois ChicagoOct 8 2024 We've seen dramatic increases in life expectancy over the 19th and 20th centuries, thanks to healthier diets, medical advances and many other quality-of-life improvements.
The Nature Aging paper, "Implausibility of Radical Life Extension in Humans in the 21st Century," offers new evidence that humans are approaching a biologically based limit to life. The biggest boosts to longevity have already occurred through successful efforts to combat disease, said lead author S. Jay Olshansky of the UIC School of Public Health. That leaves the damaging effects of aging as the main obstacle to further extension.
The analysis, conducted with researchers from the University of Hawaii, Harvard and UCLA, is the latest chapter in a three-decade debate over the potential limits of human longevity. "Our result overturns the conventional wisdom that the natural longevity endowment for our species is somewhere on the horizon ahead of us -; a life expectancy beyond where we are today," Olshansky said. "Instead, it's behind us -; somewhere in the 30- to 60-year range. We've now proven that modern medicine is yielding incrementally smaller improvements in longevity even though medical advances are occurring at breakneck speed.
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