Learn English: Space Makes Your Muscles Weak Like Grandma! (easy)
4 months, 3 weeks ago
Astronauts in space lose their muscles because there's no gravity pulling on them.
It's like when you get older and your muscles get weaker, but it happens much faster in space!
Scientists are trying to find special medicines to help astronauts keep their muscles strong.
They're even using tiny muscle chips in space to see how gravity affects them and test the medicines.
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