After careful study, sub-health is a big concept, which includes several successive stages. Among them, the one closely adjacent to health can be called "mild psychosomatic disorder", which is often manifested as fatigue, insomnia, loss of appetite, emotional instability and so on. But these obstacles are easy to recover, and they are no different from healthy people after recovery. About 25% ~ 28% of the population.
If the disease continues to develop, it can enter a "potential clinical" state. At this time, it has shown a high-risk tendency to develop into a certain disease, and it is very likely to develop into a certain disease. In the population, more than 1/3 people are in this state, and the proportion of people over 40 years old has increased sharply. Its manifestations are complex, which can be chronic fatigue or persistent psychosomatic disorder, including the above symptoms lasting for more than 2 months, often accompanied by chronic sore throat, repeated colds, listlessness and so on. Some experts also summarized its complicated performance into three types: decreased vitality, decreased responsiveness and decreased adaptability. From the clinical test, this kind of people in cities tend to be "three highs and one low", that is, they have near critical levels of hyperlipidemia, hyperglycemia, high blood viscosity and low immune function.
In addition, at least 10% or more people are between the latent clinic and the disease, which can be called "pre-clinical" state, that is to say, the disease has occurred, but the symptoms are not obvious or have not attracted enough attention, or they have not sought diagnosis, or even if the doctor has made an examination, they have not been found out for some time. Strictly speaking, the last category is not sub-health, but a sick and unhealthy state, which just needs a clear diagnosis. Therefore, excluding this part of the population, many researchers believe that sub-health people account for about 60% of the population.
Studies at home and abroad show that only about 15% of the total population meets the health standards in modern society. Interestingly, about 15% people were diagnosed as sick and in an unhealthy state. If health and disease are regarded as two ends of the life process, then it is like an olive with two pointed ends, with a large piece protruding in the middle, which is in the transitional state of health and disease-sub-health.