The main function is: in order to improve the adaptability and tolerance of astronauts to special environmental factors, it is necessary to expose and stimulate astronauts in space to special environmental factors, such as overweight, weightlessness, vestibular organ stimulation, noise, high and low temperature, etc.
Training methods are:
1. The purpose of overweight adaptability training is to make astronauts adapt to the overweight environment when the spacecraft is launched and returned, and to enhance the astronauts' ability to resist overweight;
2. The weightless training is completed by using weightless aircraft. Parabolic flight can be completed, forming microgravity time 15-40 seconds. To make astronauts feel, experience and be familiar with the weightless environment, they can do various experiments during weightless time, such as eating, drinking, undressing, closing their eyes and opening their eyes.