Astronauts get stuffy noses in space because of microgravity, scientists find

European Space Agency astronaut Samantha Cristoforetti gives the Vulcan salute aboard the International Space Station.

Scientists are calling attention to an extremely common health problem that's been making astronauts uncomfortable: sinus issues.

Researchers from Houston Methodist hospital’s Department of Otolaryngology – Head and Neck Surgery reported the results of their recent study that probed whether astronauts experience sinonasal issues, which include common symptoms such as nasal congestion and pressure or pain in the face, while in space. Sixty out of 71 (85%) of astronauts included in the study confirmed having such symptoms.