Constipation is common in astronauts—blood tests provide new answers
For astronauts in space, constipation is a well-known problem.

For astronauts in space, constipation is a well-known problem.
The short version
- But why this happens has long been unclear.
- Now, a new study from the University of Copenhagen in collaboration with NASA provides an idea of what happens in the stomach without the influence of gravity.
- This article has been reviewed according to Science X's editorial process and policies .
What happened
Editors have highlighted the following attributes while ensuring the content's credibility: For astronauts in space, constipation is a well-known problem. The researchers examined blood samples from 52 astronauts who participated in months-long missions to the International Space Station.
Why it matters
The study identified gastrointestinal changes that occur shortly after the astronauts leave Earth and gravity behind.
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