After a Long Space Trip, Astronaut Brains Need a Rest

"We found that the more time people spent in space, the larger their ventricles became," says Rachael Seidler. "Many astronauts travel to space more than one time, and our study shows it takes about three years between flights for the ventricles to fully recover." Pixabay/Pexels

Frequent space travelers should wait three years after a longer mission to allow the physiological changes in their brains to reset, a new study suggests.

As we enter a new era in space travel, researchers were interested in how the human brain reacts to traveling outside Earth’s gravity.