NASA’s twin study reveals surprising results.

NASA’s Twin Study reveals a strange anti-aging effect of space travel

NASA expected the rigors of microgravity to have a largely negative impact on identical twin astronauts. They left one on Earth while sending the other to the International Space Station for a full year.

Scott Kelly, 51 years old, experienced a strange transformation on the ISS that has left scientists baffled.

Telomeres on his white blood cells grew longer. Telomeres protect DNA by sitting at the ends of chromosomes. They are similar to the plastic aglets that sit on shoelaces.


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