The secret of the super-agers is revealed: it’s in their blood

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The secret of the super-agers is revealed: it’s in their blood

These people, who live to at least 110, boast a high number of cells that kill cancer and infections

Sarah Knapton

The puzzle of how some people live healthily for a century or more may finally have been answered by scientists.

Tests have shown that the blood of “super-agers” is stocked with unusually potent immune cells which attack viruses, bacteria and tumours.

Most people carry CD4 T-cells, which work like sentinels, scouting for invaders, then pumping out chemicals to attract the “soldier” immune cells, which wipe out disease. But a study of seven supercentenarians – all of whom lived to 110 or older – found that a large number of their CD4 T-cells take up arms themselves against pathogens, boosting the immune system...

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