1. energetic, able to cope with the pressure of daily life and work without feeling too nervous;
2. Normal mental state, no symptoms such as depression, anxiety and fear attack;
3. Have a reasonable diet, be good at rest and sleep well;
4. Strong adaptability, able to adapt to various changes in the environment;
5. Being able to resist the common cold and infectious diseases;
6. Appropriate weight, uniform figure, and coordinated position of head, shoulders and arms when standing;
7. Bright eyes, sharp reaction, relaxed eye muscles and no inflammation of eyelids;
8. Clean teeth, no tooth decay, no pain; The gum color is normal and there is no bleeding;
9. Hair is shiny and there is no dandruff;
10. Muscles and skin are elastic, and walking is easy and powerful.