A study has come to the fore, in which it has been revealed why some people live for more than 100 years. Researchers have told how this is possible. In research , after studying the DNA of seven people above 100 years of age, researchers saw one thing common in all and that was their immune cells.
All these people fought with many bugs and viruses. Paola Sebastiani, a biostatistician at Tufts University in Boston, told the Daily Mail that we believe that centenarians have protective factors that protect them from Spanish flu and Covid . Researchers from Boston University were also involved in this study.
Got the secret of living 100 years
The study looked at blood samples from seven centenarians between the ages of 100 and 119. The team isolated an important part of the immune system of all of them. Peripheral blood mononuclear cells, which are a type of immune cells, are found in the bones. The researchers compared them with two smaller samples. Neither of these two had extreme longevity themselves, nor had anyone in their own family history lived to be a hundred years old.
Dramatic changes seen in 100-year-olds
The team observed a dramatic change in the mix immune cells of those who lived to be 100 years old. More B cells than CD4+ T cells showed that their immune system was very strong. This shows that their immune systems have had decades of hard experience fighting natural and environmental infections.
The immune system of those who live a hundred years is strong
The study concluded that centenarians have unique, highly functional immune systems. But scientists can't yet say for sure whether their results show a hereditary tendency toward extremely long life.
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