Spaceflight could alter the brain and the fluid around it
How spaceflight changes the brain of astronauts - daily science news headlines - space

According to a recent international study, flying into space may change the brain of the cosmonauts. The study was conducted on ten Russian cosmonauts that had their brain scanned using magnetic resonance imaging (MRI), before and after spaceflights.

The scans showed changes in several brain regions. The volume of grey matter was decreased and the balance of the cerebrospinal fluid looked disturbed. After a few months, the changes in grey matter resolved themselves but the fluid was still changed.

The reasons for these modifications are not completely understood and the investigations continue to understand their impact on the astronauts’ health.

Read the full story: University of Antwerp
Scientific publication: The New England Journal of Medicine