The World Health Organization (WHO) has proposed a new concept of health: health is not only the absence of disease, but also includes mental health and social interaction. In other words, health is a state of mental, physical and social well-being. So, what is “sub-health”? As the name implies, “subhealth” is a state in the middle of health and disease. The concept of “sub-health” was introduced and studied because the number of people in sub-healthy state is large, accounting for about 60% of the total population. You can check the following sixteen aspects to see if you are in a “sub-healthy” state. 1. When you wake up in the morning and comb your hair, a small amount of hair falls out continuously. 2, three meals a day, eating very little, appetite is not good, even if the taste is very suitable for their own dishes, but also feel like chewing dry wax. Prefer to eat light or juicy food. 3. Significant memory loss, often forgetting things. Thinking is not concentrated, lack of confidence in things, often due to negligence and mistakes. 4 . Work efficiency is significantly reduced, the boss has expressed his dissatisfaction with you. 5, often feel tired, after working for an hour, will feel tired, chest tightness and shortness of breath. The slightest movement pulse is a strong beating, a long time can not recover. 6. Emotional irritability, often dissatisfied with themselves or colleagues, nameless fire, but no energy attack. 7. Very sensitive to the pollution and noise of the living environment, more than normal people long for the tranquility of the landscape, rest and recuperation. 8. Fear of walking into the office, feel that work is tiresome. 9, often insomnia or not easy to fall asleep. Both asleep and in a state of dreaming, sleep quality is very poor. 10. The ability to change is reduced, can not adapt to various changes in the external environment. 11. Often easy to catch cold and wind, resistance is reduced. 12. The feeling of forcing oneself to be socially responsible for the gatherings of friends and various activities that one used to be enthusiastic about. 13. Frequent mouth ulcers, bleeding gums, corns. 14. Significant weight loss or extreme obesity. 15. Dull face, puffy eyelids, slow movement, frequent yawning, cold hands and feet. 16. Decreased libido, tired of normal sexual life, little sexual desire. There are various manifestations of subhealth, mainly fatigue, insomnia, loss of appetite, emotional instability, etc. However, once there are various manifestations of sub-health, even if the doctor does not wear a certain disease “hat”, you should be vigilant, check their work and life patterns and ways to check whether there are factors harmful to health, and under the guidance of doctors, the implementation of self-care methods, measures to prevent the occurrence of disease.