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Home»Health»Longevity Limits: Humanity Reaches Plateau in Life Expectancy
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Longevity Limits: Humanity Reaches Plateau in Life Expectancy

October 8, 2024No Comments3 Mins Read
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Recent research suggests that life expectancy is nearing its upper limit, with advances in medical technology and genetic research not significantly increasing lifespan overall. While the number of centenarians is growing, the percentage of people reaching 100 is expected to remain limited. This article explores the implications of this finding and the need to reassess assumptions about retirement and longevity planning. Life expectancy is a crucial health metric, but it has limitations in accounting for unforeseen events like pandemics or medical breakthroughs.

Don't expect human life expectancy to grow much more, researcher says
Emma Morano holds a cake with candles marking 117 years on the day of her birthday, Nov. 29, 2016, in Verbania, Italy. Credit: AP Photo/Antonio Calanni

Running Into The Lifespan Wall

A research published in the journal Nature Aging suggests humanity is now approaching the “left wall,” or an upper limit on lifespan. S. Jay Olshansky, from the University of Illinois-Chicago and his team analyzed new estimates for life expectancy between 1990 and 2019 in eight populations that have some of the longest-living individuals around the world: Australia, France, Hong Kong, Italy, Japan, South Korean, Spain and Switzerland.

The study shows that even though a decades-long march of adding years to human life is continuing, the pace of that progress is slowing. The rate of improvement was higher in the 1990s, at about 2.5 years every decade on average, sliding to only 1.5 years a decade in the more recent 2010s and nearly stagnating in the United States. Well, this is the part where aging gets in the way of additional longevity gains — hinting at that persistent upper limit to human lifespans and suggesting we may be reaching the physiological maximum.

The Centenarian Conundrum

The study highlighted one noticeable trend — the increase in centenarians, or people who live to be 100. Last year, a little over 2% of Americans made it to their hundredth birthdays, whereas some 5% in Japan and nearly 9% in Hong Kong did. But the researchers say that increase is largely because there are more people to begin with, and only 15%-and-biggest-share-perhaps-five-percent-of-men-are-likely-to-live-to-be-a-century-old–in-many-countries.

University of Texas researcher Mark Hayward, who was not involved in the study, said he concurred with the findings: “We are hitting a plateau” in life expectancy. Although the breakthrough that could raise survival to new heights is conceivable, it is not something researchers currently see on the horizon.

Reimagining Retirement and Longevity Planning

The authors suggest that the study results should lead to a reexamination of assumptions about when retirement is appropriate and how much savings people will require for their final years. Olshansky told AFP that ‘We have to acknowledge there’s a limit’ to human lifespa, meaning ‘this is very important for social security systems, pension plans and individual financial planning.

The findings of the research also point a need to overcome the obstacles that prevent further increase in life expectancy, especially within the United States. In part as a result of drug overdoes, gun deaths, obesity and disparities in health care performances — America lags behind other rich nations. Therefore, if people are to live longer and healthier lives, solutions for these issues need to be found.

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jeffbinu
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Tech enthusiast by profession, passionate blogger by choice. When I'm not immersed in the world of technology, you'll find me crafting and sharing content on this blog. Here, I explore my diverse interests and insights, turning my free time into an opportunity to connect with like-minded readers.

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