What is sub-health?

Sub-health refers to a state between health and disease. People in sub-health state can't reach the health standard, which is characterized by the decline of vitality, function and adaptability in a certain period of time, but they don't meet the clinical or subclinical diagnostic criteria of modern medical related diseases. According to the clinical manifestations of sub-health state, it can be divided into the following categories. First, physical symptoms such as fatigue, sleep disorder or pain are the main manifestations. Second, the main manifestations are depression or anxiety, impatience or fear, timidity or short-term amnesia, inattention and other mental and psychological symptoms. Third, it is mainly manifested in the decline of social adaptability such as the frequency of interpersonal communication or the tension of interpersonal relationship. If any one of the above three items continues to attack for more than three months, and the diseases that may lead to the above manifestations are excluded through systematic examination, they can be judged as sub-health in body, sub-health in psychology and sub-health in social communication respectively. Clinically, the above three sub-health states often appear one after another.