Science, asked by himan0576, 8 months ago

Why do the people going to spce have holes in their bones when they come back...???

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Answered by Namasya

Answer:

In space, astronauts lose fluid volume—including up to 22% of their blood volume. Because it has less blood to pump, the heart will atrophy. ... Upon return to earth, the blood begins to pool in the lower extremities again, resulting in orthostatic hypotension."

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