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Constipation is common in astronauts—blood tests provide new answers
For astronauts in space, constipation is a well-known problem. But why this happens has long been unclear.
AI Summary
A study by the University of Copenhagen and NASA examined blood samples from 52 astronauts after months‑long missions on the International Space Station. The analysis revealed gastrointestinal changes that appear soon after leaving Earth’s gravity, offering a possible explanation for the frequent constipation reported by space travelers. The results were published in Nature Communications.
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