What is the sign of health?

① Hair is shiny and clean.

② Clear and bright eyes, free running and normal vision.

③ There is no swelling, secretion and pain in the ears, and the hearing is normal.

④ The skin color is normal, the surface is smooth, and there is no damage.

⑤ The teeth are clean, without unfilled cavities, and arranged neatly.

⑥ Strong muscles and good performance.

⑦ Smart, in good shape, without neurotic symptoms, and moderately fat and thin.

Good appetite, no fatigue after physical activity, and quick recovery after rest.