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WWhen NASA embarked on studying two identical astronauts, leaving one on Earth and sending the other one to the International Space Station (ISS) for a year, they expected that the The rigors of microgravity have largely negative effects.
But aboard the ISS, Scott Kelly, 51, underwent a very strange transformation that left scientists scratching their heads.
The telomeres of his white blood cells are lying down. Telomeres are protective caps located at the ends of chromosomes, protecting the DNA contained inside, such as plastic aglets located at the ends of laces.
As people age, telomeres shorten and eventually disappear completely, which, according to experts, is linked to diseases such as cancer or heart …
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