Then there is Spaceflight Venous Thrombosis (SVT), which is caused by literally hanging upside down and includes an upward fluid shift that may make the face seem “puffy.”
Thankfully, according to NASA, most astronauts recover to their pre-mission fitness levels in 45 days, however in extreme circumstances, recovery may take months or even a year.
“Going into space was no problem at all for me, but for the first two days on Earth, I felt pretty rough,” retired British astronaut Tim Peake said on RadioX.
“I anticipate that Butch and Suni will be experiencing some difficulties at the moment. The whole body is just adjusting to gravity, you know.
The vestibular systems were a little off. You feel a little queasy and lightheaded. They will thus need a few days to recover from it.
