Aging stops at the age of 105, according to a study

ROME, JUNE 28 (ANSA) – By Adele Lapertosa – The biological limit to human longevity is a mystery, if it exists.

But, according to a research conducted by the University of Rome La Sapienza and published by the magazine "Science" Thursday (28), once reached the age of 105, aging is interrupted, since the risk of death is constant for the next few years.

This means that after this age, it is virtually impossible to say how long people will live. "If there is a biological limit to human life, it has not yet been verified," said ANSA coordinator of the study, Elisabetta Barbi, of the Department of the Sapienza statistics.

The badysis was done between 2012 and 2015, based on data from 3886 people in the age range of 105 years, at a minimum. Researchers have discovered how age influences the risk of death, but that at a certain point (after the age of 105), this chance stagnates.

"For example, at age 50, the risk of dying next year is three times higher than when you are 30. And when you reach 60 or 70, the chances of dying double every eight If you are lucky enough to live 100 years, your chances of reaching the next birthday are 60%, "says the report.

Another finding of the survey is that "for younger generations of births, mortality rates are slightly lower," Barbi said. A similar study on the risk of death at more extreme ages has been made with other animal species, such as insects, suggesting that there is an evolutionary explanation for the disease. interruption of old age.

The discovery of the aging threshold, according to Barbi, "gives not only a clear and certain answer on mortality rates, but is crucial to understand the mechanisms based on human longevity and for the future development of theories of aging ". For her, it is the first "confirmation of the role played by the selective survival, that is to say the survival of individuals less fragile or vulnerable to disease or death," she said. he concluded. (ANSA)