Why Do Astronauts Get Stuffy Noses in Space? Microgravity Holds the Answer

Microgravity’s Surprising Effect on Astronauts’ Health

Astronauts often experience stuffy noses while living in space, and new research finally explains why. Unlike on Earth, microgravity causes bodily fluids to shift upward, leading to congestion and uncomfortable nasal symptoms. Scientists discovered that these symptoms aren’t just a minor nuisance—they can impact astronauts’ comfort and daily life aboard the International Space Station.

Astronaut experiencing stuffy nose in space

Research Sheds Light on Spaceflight Challenges

In the study, researchers observed that microgravity makes mucus accumulate in astronauts’ nasal passages. This buildup leads to stuffiness, sneezing, and even changes in their sense of taste and smell. Since the human body relies on gravity to drain fluids normally, being in space disrupts this process. The findings highlight the importance of understanding how spaceflight affects human health as we plan for longer missions.

Sources:
Read the full research on Space.com