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Limit to human life may be 115 ish

Life expectancy has been increasing relentlessly since the nineteenth century due to vaccines,replica van cleef red clover necklace, safer childbirth and tackling killers like cancer and heart disease.

But can that go on forever?

The team in New York analysed data from the Human Mortality Database and the deaths of super centenarians (those over 110) in France, Japan, UK and US.

The data showed increases in life expectancy were slowing in centenarians and that the maximum age of death had plateaued for at least two decades.

Prof Jan Vijg, one of the researchers from the Albert Einstein College of Medicine, told the BBC News website: "In people over 105 we make very little progress, that tells you we are most likely approaching the limit to human life.

"For the first time in history we've been able to see this, it looks like the maximum life span this ceiling, this barrier is about 115.

"It's almost impossible you'll get beyond it. You need 10,000 worlds like ours to end up with one individual in a given year who will live until 125 so a very small chance."

The oldest person

Jeanne Calment came close. The oldest ever person, whose age can be backed up by official documents, was 122 when she died in 1997.

The French icon of longevity was born before the Eiffel Tower was constructed and met the painter Vincent van Gogh.

Nobody has since got near her venerable age.

Prof Dame Linda Partridge,van cleef and arpel clover necklace replica, the director of the UCL Institute of Healthy Ageing, said a limit to lifespans "logically has to exist".

But she told the BBC: "Although this really interesting paper describes what is happening, it doesn't describe what will happen."

The crop of centenarians in the study were affected by malnutrition and infectious diseases in their childhood back in the late 19th Century. Remember smallpox was declared eradicated only in 1980.

"It was certainly very different to what the current birth cohort will go through, but it could yet be rather negative as a lot of children have grown up obese and that could bring lifespan down quite a lot," Prof Partridge added.

'Travesty' The 115 year claim is too much for Prof James Vaupel, the director of the Max Planck Institute for Demographic Research.

He described the study as a dismal travesty and said scientists had in the past claimed the limit was 65,replica van necklace, 85 and 105 only to be proven wrong over and over again.

He said: "In this sorry saga, those convinced that there are looming limits did not apply demography and statistics to test hypotheses about lifespan limits instead they exploited rhetoric, deficient methods and pretty graphics to attempt to prove their gut feelings.

"[This study] adds nothing to scientific knowledge about how long we will live."

Experiments,van cleef necklaces replica, which look after animals in ideal conditions, have suggested lifespans do have a limit.

Prof Jay Olshansky, from the University of Illinois, said mice tend to live for about 1,000 days, dogs for about 5,000 days and "humanity is approaching a natural limit to life".

Stopping ageing?The challenge with tackling ageing is that we have not evolved to live to extreme old ages.

Millions of years of natural selection has honed us to survive, grow and reproduce in our youth.

What happens to our bodies half a century or more later at ages we have never reached in our evolutionary history are a side effect of the instructions in our DNA that are important in youth.

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By LOO
Added Aug 6 '17

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