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Their bones, heart, and muscles begin to waste away because they cannot strengthen themselves by working against Earth's gravity; if they return from over 8 months in space, their bones would instantly break. It's not a pretty picture.

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14y ago

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Astronauts in space for a long time may experience muscle atrophy, bone density loss, weakened immune system, and changes in vision due to the effects of microgravity. They also may experience psychological challenges such as feelings of isolation and confinement. To counteract these effects, astronauts follow a strict exercise regimen and receive regular medical check-ups while in space.

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8mo ago
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Q: What happens to astronauts in space for a long period of time?
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