The first meal of the pilot after landing is mostly mutton, because the digestive system of the pilot will change under weightlessness, in order to take care of the gastrointestinal changes of the astronauts.

From a gender perspective, astronauts are mainly men. Nearly 20 years after the first female astronaut, valentina tereshkova, flew,1August, 982, Soyuz T-7 spacecraft and female astronaut Svetlana Savika (34 years old) flew for the second time.

At present, the number of female astronauts is gradually increasing. In terms of age, drivers and mission experts are generally 22-40 years old, and load experts can be over 40 years old.

Prerequisites:

To be an astronaut, we must first have good physical fitness, because in the process of entering space or returning to the ground, astronauts have to overcome many difficulties in special environments such as the mechanical environment of spacecraft flight, the physical environment of space and the narrow space environment of spacecraft. In order to adapt to the test of this environment, the physical quality and comprehensive quality of astronauts are very important. Therefore, people lucky enough to become astronauts are rare.

Manned space activities have strict requirements for astronauts' physiology and psychology. According to the space mission and its different requirements for all kinds of astronauts, space medical experts formulate corresponding selection items, contents and standards. Generally, it includes basic qualification examination, clinical medical examination, physiological function selection, psychological selection, endurance and adaptability selection of special environmental factors, etc.