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They found themselves with details of 3,836 Italians who lived to be over 105 years old.
Then they plotted mortality, to see when people died and there was a pattern. There was. Once people reached 105, the death rate dropped. Of course, they will all eventually die, but the rates were lower as they got older.
"When a mortality curve stabilizes, it is said that it reaches a plateau," noted Barbi's team. "Using clean data from a single nation and simple estimation methods, we have shown that death rates, which increase exponentially to about 80 years, decelerate by further and reach
Other studies have shown that super-centenarians are unusually healthy, given their age, and that they do not often live their last years in being sick and frail.
The longest validated life is for the French Jeanne Calment, who died in 1997 at the age of 122 years and 167 days.
The Gerontology Research Group, an American network that follows the super-old, says 36 living now. Japan's Chiyo Miyako, aged over 117, is currently the oldest verified person, followed by Giuseppina Projetto-Frau of Italy, who has 116.
The last person born in the 1800s was the Italian Emma Morano, she died in 2017 at the age of 117. She was born in November 1899 and her life lasted three different centuries.
However, the trend is shifting badly for the United States, where life expectancy is decreasing. 19659011]
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