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Life expectancy around the world continues to rise and this leads to a question that is very interesting, is the trend ever going to stop, will there be a maximum age limit?
According to new research, there is no sign of any fixed age limit for humans; humans are going to keep living for longer and longer. This is based on a study of the lifespan of some of the individuals in the UK, US, France, and Japan, who are the longest living. The study accounts from 1968 and it includes Susannah Mushatt Jones from New York who died in 2016 at the age of 116.
Is There A Natural Limit To Lifespan Of Humans?
A team from the McGill University from Canada wrote a new paper in response to an analysis that was published last year. This suggested that there is a natural limit to the lifespan of humans, even if people do find ways of breaking through it.
Siegfried Hekimi, biologist and one of the researchers said that they have no idea just what the age limit is, or if there is one. He went on to say that if the trend lines are extended they show that the maximum along with average lifespans might continue on their increase far into the future.
Hekimi along with his colleague Bryan G. Hughes have argued that the plateau for the age limit has been seen by research from last year and it levels off at about 115 years old, but it could be temporary as plateaus and drops that are similar have been recorded in the past while the overall trend has carried upwards.
He went on to say that if people had used the same method of number crunching in 1980 it would have then shown a plateau of 111 years or so. Even though the statistical analysis has suggested it leveling off, the top figure is continuing to rise. He said that it all depends on how you look at the numbers and interpret them. Researchers have been dealing with outliers of course in their statistics and this is the fact that not many people live to be 111 or 115.
Researcher Believes Humans May Live To 150 Or More In Future
Hekimi believes human beings might be able to live as long as 150 years or maybe even beyond in the future, with the help of new medical or scientific treatments helping them. The researchers at the McGill University are not the only ones who are arguing about the way in which the numbers may be interpreted.
There are some experts who have said that not enough data had been used to reach the conclusion; others have said that biological evidence that says people are living longer is outweighing the statistics. The researchers who are behind the 2016 study have welcomed the debate and they are adamant that their findings remain standing.
One of the researchers from the Albert Einstein College of Medicine, Jan Vijg, said that they would not rule out the fact that the ceiling may be broken. He went on to say that perhaps there would be a success in the generation of new drugs that would work against diseases. They could work against the process of aging overall and they deserve plenty of publicity.
Could Biological Barrier Stop Rise Of Life Expectancy
It does look like the average life expectancy is going to continue rising due to the fact that wealth grows and there are improvements in medical treatment. It remains to be seen whether there will be a biological barrier or not coming up against them.
The oldest woman lived in France, Jeanne Calment; she was 122 years and 164 days old when she passed away. The oldest living person at the moment is Violet Brown from Jamaica and she has four years to go if she is to set the record.
Hekimi said that three hundred years back people lived only short lives. He went on to say that if at that time someone had said that one day many people would live to the age of 100, they would have been called crazy.
The findings have been published in Nature: