Women can now live to 115 years
The Hague – Dutch researchers claimed yesterday to have discovered the maximum age ceiling for human lifespan, despite growing life expectancy because of better nutrition, living conditions and medical care.
Using data from about 75 000 Dutch people whose exact ages were recorded at the time of death, statisticians at Tilburg and Rotterdam’s Erasmus universities pinned the maximum ceiling for female lifespan at 115.7 years.
Men came in slightly lower at 114.1 years in the samples taken from the data, which spans the past 30 years, said Professor John Einmahl, one of three scientists conducting the study.
“On average, people live longer, but the very oldest among us have not gotten older over the past 30 years,” said Einmahl.
“There is some kind of a wall here. Of course, the average life expectancy has increased,” he said, pointing out the number of people turning 95 in the Netherlands had almost tripled.
“Nevertheless, the maximum ceiling itself hasn’t changed,” he said.
Lifespan is the term used to describe how long an individual lives, while life expectancy is the average duration of life that individuals in an age group can expect to have – a measure of societal wellbeing.
The Dutch findings come in the wake of those by USbased researchers who last year claimed a similar age ceiling, but who added that exceptionally long-lived individuals were not getting as old as before.
Einmahl and his researchers disputed the latter finding, saying their conclusions, deduced by using a statistical brand called “extreme value theory”, showed almost no fluctuation in maximum lifespan.
Einmahl said there were still some people who had bent the norm, like France’s Jeanne Calment, who died at the ripe old age of 122 years and 164 days. –