The successful return of Shenzhou-16 to Earth and the return of astronauts with a full load are gratifying news. However, when the astronauts came out of the capsule,
Attentive viewers may notice one detail: their faces are slightly red and noticeably puffy. At the same time, the astronauts were all carried on stretchers after leaving the capsule,
This raises concerns. Why do astronauts get out of the capsule? And why were they being carried on stretchers?
The causes of these facial redness and puffiness are related to the weightless environment. In the weightless space environment, the distribution of body fluids in the human body changes,
Blood is almost evenly distributed throughout the body, especially in the upper body. As a result, the astronauts' faces are swollen.
This phenomenon is also reflected in female astronauts Liu Yang and Wang Yaping. In addition, astronauts lack the power activity in space,
As a result, they will need to undergo a process of gravity adaptation after returning to Earth, and their muscles and bones will also be affected, so they will need the assistance of medical personnel. While in space,
Astronauts can lose 10 to 15 percent of their muscle mass, and even up to 50 percent during long space flights.
This makes astronauts go through a process of adaptation of muscles and bones, for which mobility becomes difficult,
Therefore, the support of medical personnel is needed to smoothly adapt to the gravitational environment of the earth. In addition, prolonged weightlessness can lead to calcium loss.
This affects the health of the bones. In order to reduce this effect, the astronauts carried out various physical exercises and customized training during space,
to build muscle and bone strength. The return of astronauts is a moment to celebrate, with great sacrifices and efforts for humanity to reach space.
Here, we would like to pay high tribute to every great aerospace hero! At the same time, this also reminds us to pay attention to the development of aerospace science and technology.
and the challenges and difficulties faced by astronauts in space. Now, I would like to ask a question to my dear readers:
What are your thoughts on the sacrifices and efforts of astronauts in space? Please leave your comments and share your thoughts with us.