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Science

Have We Reached Peak Human Life Span? (nytimes.com) 75

The oldest human on record, Jeanne Calment of France, lived to the age of 122. What are the odds that the rest of us get there, too? Not high, barring a transformative medical breakthrough, according to research published this week in the journal Nature Aging. From a report: The study looked at data on life expectancy at birth collected between 1990 and 2019 from some of the places where people typically live the longest: Australia, France, Italy, Hong Kong, Japan, South Korea, Spain, Sweden and Switzerland. Data from the United States was also included, though the country's life expectancy is lower.

The researchers found that while average life expectancies increased during that time in all of the locations, the rates at which they rose slowed down. The one exception was Hong Kong, where life expectancy did not decelerate. The data suggests that after decades of life expectancy marching upward thanks to medical and technological advancements, humans could be closing in on the limits of what's possible for average life span. "We're basically suggesting that as long as we live now is about as long as we're going to live," said S. Jay Olshansky, a professor of epidemiology and biostatistics at the University of Illinois Chicago, who led the study. He predicted maximum life expectancy will end up around 87 years -- approximately 84 for men, and 90 for women -- an average age that several countries are already close to achieving.

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Have We Reached Peak Human Life Span?

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  • where we go through a period where lots of little advances in science and technology gather before reaching the next big tipping point- assuming of course we dont Kill our selves and the environment we need first.
    • True, we have gotten pretty good at stopping the things that cut lives short, high blood pressure, heart disease, cancer...

      We have only recently started making discoveries on a cellular level that reduce cellular degeneration, improve mitochondrial function, clear out senescent cells, etc...

      These will be the discoveries that truly extend human lives, until the next step of genetic manipulation produce "humans" (Homo Sapiens Modificus?) that live spectacularly long lives and suffer from few or no ailments

      The

    • The path to extend life would be genetic modification, so it can only be done on those not yet born.
      It's an interesting concept, but it would extend the retirement age too.

  • Sooner or later, unless civilization and the economy collapse entirely beforehand, somebody will figure out how to, one, grow a brainless clone body, and two, reattach nerve fibers. Those two developments, taken together, mean that somebody will transplant their eighty-year-old brain into a teenage clone body. And so then we'll have a bunch of batshit senile twentysomethings wandering around in a cloud of hormones AND dementia. At which point civilization and the economy will definitely collapse.
  • by erice ( 13380 ) on Friday October 11, 2024 @06:11PM (#64858043) Homepage

    Since ageing isn't considered a problem to solve it should not be a surprise that no progress has been made. There used to be progress in life expectancy but that was really about infant and early childhood mortality. Most children born now reach their natural lifespan. Until we actually put resources into extending lifespan it won't improve significantly.

  • by RogueWarrior65 ( 678876 ) on Friday October 11, 2024 @06:32PM (#64858083)

    My dad just passed away at age 97. He was in decent shape up until age 90. He had macula degeneration in both eyes so he couldn't see much. The last several years of anyone's life are pretty dull or miserable. If you start to fall apart at 90, would you want to like 30 or more years in a degenerative state? It would be different if you could still do a lot.

    • by Samare ( 2779329 )

      That's the difference between life expectancy and healthy life expectancy. In the USA, the healthy life expectancy at 60 years (before COVID) was about 17 years. https://www.who.int/data/gho/d... [who.int]

      • by btroy ( 4122663 )
        I agree. Improvements in a healthy life span are more important that the length of life. At least in my opinion. Will we improve that side? Some, but not by huge margins anytime soon.
        • by Samare ( 2779329 )

          I think the key is prevention rather than treatment. Heart diseases and diabetes are two majors causes of DALYs which could be avoided thus lowering a lot the healthcare costs. But of course the private healthcare sector has no incentive to help with that. Neither does the food industry.
          But incentives can be created. The Nutri-Score for example tends to motivate the food industry to make healthier products. Just like the energy label motivates the manufacturers to make more energy efficient products. If con

  • We are only now getting to the point where we can reliably make genetic modifications to living people. Technologies like CRISPR have proven themselves. I wouldn't doubt that genetic researchers will start to find certain modifications that can extend human life beyond what we now think of as a "maximum."

  • We certainly haven't reached the peak lifespan. We have tools that haven't even been used yet. Because of legal complications. Cripr, nanotech, hardcore blood-creation implants. Those legal complications are likely by the same people profiting from the "medical industry" that focuses on high-billing while staffing and training hospitals to only handle the lower level injuries. Experimental science n humans has been pretty much outlawed. We know why we get old- telomeres, we know how to treat it, mostly- blo
  • Yes, but not because it couldn't theoretically be improved. Instead it's because we're not going to make it.

  • We just don't want to make the changes needed to increase it.

    A short list:

    1) Genetic maintenance. (Needs more reliable CRISPER tech that can function within a living body instead of an embryo / germ cell.)

    2) A desire to actually cure disease instead of profiteer from it. (The US healthcare system is a blight that keeps on killing via it's insurance company death panels. (Politically charged? Yes. Yes it is.) )

    3) Proper international policy. (The forbidding of waving copyright for the COVID-19 vaccin
  • No, we reached the limit of life span with this level of healthcare technology. In another 50 years, human life spans will be increased again.
  • If a cell, i.e. a system designed by blind evolution, can build an entire brand-new body essentially from scratch, then human technology can eventually do the same or better. There's nothing magic about how your body grew on its own. There's going to be nothing magic about how we eventually learn to repair the damage of age and rejuvenate health. It's all going to come once we've invented machines small enough and smart enough to do it. We just have to survive long enough and invest enough research and

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