Everyone knows that there is weightlessness in space, so it is meaningless for us to jump and run in weightlessness, and once astronauts stop physical exercise, they will cause muscle atrophy like patients lying in bed. Therefore, there will be special training equipment in the space station, such as fixing astronauts, doing muscle stretching or sit-ups, which can stimulate muscles.
And no gravity doesn't mean that all actions can't be done. Astronauts can also exercise through their own confrontation. For example, in the gym, we often see many coaches ask students to hold each other's wrists firmly with one hand, and then do confrontation training with both hands. This kind of activity is completely free of gravity, and can be completed at any time and place, and the fitness effect is not bad.
As for other health care. For example, cold and diarrhea will not happen in theory, because they are all caused by germs, but the space capsule is sterile and the astronauts' diet is specially treated to ensure their health.
As for what astronauts eat, it's actually no secret. The food eaten by astronauts is basically liquid food cooked on the earth. Then why not eat puffed food such as biscuits and chips? The reason is also very simple. There is a weightless space. Once these foods are crushed, they will produce a lot of residue. Floating in the air will not only affect normal breathing, but also make the space messy, and may invade various key parts, causing unimaginable disasters. Therefore, no matter what flavor of food, most of it will be made into jam, and astronauts can get the nutrition and energy needed by the human body through smoking.
Although there is no food that is particularly easy to produce residues in space food, we still have to chew it when eating, which will inevitably lead to the leakage of some food residues. Therefore, the astronaut's dining process has strict procedures. First, he must fix himself, then fix the plate with food, and keep his mouth closed when chewing food to prevent the residue from floating out. So the space station looks like fun, but in fact, daily life is not convenient.
Before the International Space Station, most of the food was cooked according to the taste of Europeans and Americans because there was no participation of China. With the rapid development and progress of space technology in China, we are now gradually assembling our own space station. Astronauts who have lived on it for a long time are lucky enough to taste the delicious food in their hometown, because the food developed by China Aerospace Department is more in line with our own taste, and many of them are Chinese style.