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With the successful return of Shenzhou 16, the whole country is proud of the successful conclusion of this space journey. This mission is not only a great challenge to technology, but also a severe test of the astronauts' personal ability.
However, at the moment when the astronauts returned safely to the surface, there were some details that may have caught everyone's attention. We saw that the astronauts' faces seemed to have changed significantly from before the launch, their faces were slightly reddish and slightly puffy. This is in stark contrast to the state they were in when they were on the ground, and one can't help but worry about their health during their time in space.
Observing the live broadcast footage, we can see that the astronauts were carried on stretchers one by one and carefully transported away. This scene made many viewers wonder, did they encounter any problems in space, and were they in good physical condition? Looking back at the previous female astronauts Liu Yang and Wang Yaping, their faces seemed to be more puffy after returning from a space mission. Through an internet search, we found photos of them when they returned to Earth and compared them with those before they went to space, and the changes were obvious.
In the face of this phenomenon, it is clear that public concern is unavoidable. But in fact, you don't need to worry too much. The swelling of astronauts' faces in space is a common phenomenon, mainly due to the uneven distribution of blood caused by the microgravity environment.
On Earth, gravity causes the blood in our body to be distributed mainly in the lower body. But in space, this distribution becomes more even, causing blood that should be concentrated in the lower body to flow to the upper body, including the face, resulting in puffiness.
This is similar to the feeling we feel when we do handstands on the ground, and over time, the face becomes puffy due to the blood filling. The good news is that this condition will gradually disappear as astronauts return to Earth and readjust to Earth's gravity.
As for why astronauts are carried away after returning to Earth, it is also related to the microgravity environment in space. In space, due to the lack of gravity, astronauts' muscles and bones atrophy, and over time, their bodies lose the ability to walk on Earth.
Coupled with the weight of the spacesuit, it is difficult for us to bear even on Earth, let alone astronauts whose bodies have adapted to the space environment. Therefore, in order to protect their bodies, they do need to use stretchers to move when they have just returned to Earth.
After returning to Earth, astronauts will also need to undergo medical isolation for about two weeks, which is to protect their already weakened immune system in space from harming them with germs and viruses on Earth.
Finally, we need to understand that becoming an astronaut is not an easy task. Not only do they have to undergo rigorous training, but they also face tremendous physical and psychological stress while performing their tasks. We should pay the highest respect to them, and wish the three astronauts of Shenzhou-16 a speedy recovery, and also hope that the astronauts of Shenzhou-17 can successfully complete their mission and create new glories.
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