The maximum age is unlikely to ever go beyond the current record of 122 and 125 is the limit
Although we are living longer than ever on average, the maximum age is unlikely to ever go beyond the current record of 122 and 125 is the absolute limit.
The study, published online by the journal Nature, Suggests That It May not be possible to extend the human life span beyond the ages Already attained by the oldest people on record.
Since the 19th Century, average life expectancy has risen Continuously thanks to almost improvements in public health, diet, the environment and other areas.
Babies born in the United States today, for example, can expect to live to an average age of Nearly 79, Compared With an average life expectancy of just 47 for Americans born in 1900.
Our data strongly Suggest That it has Already Been attained and That This Happened in the 1990s
Since the 1970s, the maximum duration of life – the age to Which the oldest people live – you Also risen.
But, According to the new study, the upward arc for maximal lifespan has a ceiling -and we’ve Already touched it.
Study senior author Professor Jan Vijg, of Albert Einstein College of Medicine in the US, said:. “Demographers as well as biologists Have contended there is no reason to think That the ongoing Increase in maximum lifespan will end soon
Albert Einstein holding a pipe in 1933
“But our data strongly Suggest That it has Already been attained and That This Happened in the 1990s.”
Prof Vijg and his colleagues analysed figures from the Human Mortality Database, Which compiling mortality and population data from more than 40 country clubs.
Since 1900, Those Countries Generally show a decline in late-life . mortality
The fraction of each birth cohort – people born in a special year – who survive to old age, defined as 70 or older, Increased with Their calendar year of birth, pointing towards a Continuing Increase in average life expectancy.
The probability in GIVEN year of seeing one person live to 125 anywhere in the world is less than
But When the Researchers Looked at survival improvements since 1900 for people aged 100 and above, They found That gains in survival peaked at around 100 and then a Declined Rapidly, Regardless of the year people were born.
Prof Vijg said: “. This finding Indicates diminishing gains in Reducing late-life mortality and a possible limit to human lifespan”
The Researchers then a Looked at “maximum Reported age at death” figures from the International Database on Longevity.
They focused on people verified as living to age 110 or older Between 1968 and 2006 in the four countries – Britain, the Unites Sates, France and Japan – with the largest number of long-lived Individuals
Jeanne Calment at 120 years and 239 days old
Age at death for These super-centenarians Increased Rapidly Between the 1970s and early 1990s but Reached a plateau around 1995 – further evidence for a lifespan limit.
The researches Said That esta plateau occurred close to 1997 – the year of death of 122-year-old French woman Jeanne Calment, WHO Achieved the maximum documented lifespan of any person in history
. using maximum-Reported-age-at-death figures, the average Researchers put the maximum human life span at 115 years – a record-calculation Allowing for Individuals occasionally oldest living longer or shorter than 115. They Concluded That Mme Calment was a statistical ” outlier. ”
Finally, the 125 years Researchers Calculated as the absolute limit of human lifespan. Expressed another way, This Means That the probability in GIVEN year of seeing one person live to 125 anywhere in the world is less than 1 in 10,000.
Dr Vijg added: “Further progress Against infectious and chronic diseases May continue boosting average life expectancy, but not maximum lifespan
.” While it’s conceivable That therapeutic breakthroughs Might extend human longevity beyond the limits we’ve Calculated , Such advances would need to overwhelm the many genetic variants That Appear to collectively determine the human lifespan.
“Perhaps resources now being spent to Increase Lifespan Should Instead go to lengthening HealthSPAN -. The duration of old age spent in good health”