As NASA astronaut Frank Rubio returns home after 371 days spent in space, an expert discusses the physical and psychological changes to the human body in space.
and long-duration astronauts may experience a variety of changes including an upward shift of the brain or eye swelling and blurry vision.
"That is one of the most foreign things biologically that the body has to deal with," Fogarty, who is also the former chief scientist of the NASA Human Research Program, added. "I think that is the one where I would say crew members who do extended durations do get much greater monitoring, because we really don't know what to anticipate."and in a closed environment for a long duration.
Fogarty said that there are also changes to the immune system during this time, often a result of chronic stress, which is why it's important to create as healthy of an environment as possible for astronauts going on missions.Scientists will also likely look to see if Rubio has any changes to his genes, including those related to the immune system, as occurred with astronaut Scott Kelley when he spent 340 days in space in 2015 and 2016.
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