People have, in single stretches, spent more than six months in space. It's doable. They exercise for like 2 hours every day to try to maintain muscle mass and bone density.
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timeasmymeasure
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Date: 2024-09-02 12:51 am (UTC)People have, in single stretches, spent more than six months in space. It's doable. They exercise for like 2 hours every day to try to maintain muscle mass and bone density.