A number of people claim to be older, but the oldest person on record is Jeanne Calment of France, who lived for 122 years.
She established for humans what is known, in the field of gerontology, as maximum life span. That is, the maximum number of years a person could potentially live.
This is not to be confused with life expectancy, which is the number of years one can expect to survive in a given area of the world during a given period of time.
How Long Can People Expect to Live in the US?
From 2013-2014, life expectancy in California, Hawaii, Utah, Colorado, Minnesota, and parts of New England was 80 to 81.3 years, in comparison with 77.2 to 78.4 years in many of the Southern states.
Life expectancy also varies according to gender and race, with women and Asian Americans coming out ahead of men and non-Asians in the U.S.
Although life expectancy has increased in the United States with each passing year, maximum life span is believed by some researchers to be a fixed limit. This means that while more people may live increasingly longer lives, none will exceed 122 years of age.
How Long Can Animals Live?
The maximum life span of animals varies widely. The Arctica islandica clam holds the record for longest lived, with a maximum life span potential of 508 years.1
Other animals with long life potentials are the bowhead whale (211 years), red sea urchin (200 years), and lake sturgeon (157 years).
While mainly invisible to the public eye, gerontology research is “alive” with longevity discoveries that appear on a regular basis in scientific journals. Genetic engineering, dietary modifications that include nutritional supplementation or calorie restriction, pharmaceuticals, and other therapies have resulted in a significant extension of life.
Numerous studies have documented an increase in average life span in animal models ranging from fruit flies to primates. Due to the nature of this research, which usually involves observing an animal such as a roundworm or mouse throughout its life, studies such as these would be impractical to conduct on humans.
Nevertheless, the findings of experimental studies are the basis for a number of therapies that the more adventurous among us are more than willing to try. What is even more exciting are the studies that have resulted in an extension of maximum life span.
The significance of these findings is that the maximum life span of humans and other species may not be “set in stone,” and that there may soon be a way to exceed it.
Calorie Restriction is Linked to Longevity
Calorie restriction has been tested in a variety of species over the past several decades and has been demonstrated to extend both average and maximum life span. Yet the technique is difficult for most people to implement.
Resveratrol, pterostilbene, and other compounds that target some of the same molecular pathways as calorie restriction could result in some of the same benefits.
While thousands of men and women have availed themselves of these compounds it is, of course, too soon to tell whether they will extend maximum lifespan.
The only other means shown to increase the maximum life span of a species is genetic engineering, which may one day be employed to lengthen human life.
The Bottom Line
Gerontologists recommend doing whatever it takes to prolong our lives and to avail ourselves of other life-extending therapies.
What are your thoughts?
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