Subhealthy, a term that emerged at the end of the last century, is widely used in China, and not much foreign literature can be searched using the English term “subhealthy”. This term corresponds to the World Health Organization’s (WHO) guidelines on health, “state three”. What is subhealthy? Or what is the third state? Previously, we were familiar with only two types of “health states”: 1) sick; and 2) not sick. It is easy to understand that the state of “disease” is when there is a definite disease in the body and mind. However, when no clear physical or mental illness is found, people usually think that they are “healthy”. This is a misunderstanding! There are two other states: (1) healthy state; and (2) subhealthy state (or third state). Sub-health is the “third state” between “health” and “disease”. It covers a wide range of areas, and individual differences are “very large”, and there are no “clear criteria”. So, how can we “determine” whether we are in a “subhealth state”? We can only use the “exclusion method”: first, we can check the diseases through medical examination to exclude ourselves from the “disease state”; then we can carefully check the “health standards” to exclude ourselves from the “health state”. In a “healthy state”. If you are not in a “healthy state”, then you are in a “subhealthy state”, in short, “subhealthy”. ① Check the disease state: you have to rely on a large hospital or professional medical examination institutions to carry out systematic, objective, scientific medical examination. Here, I will not expand on it. I want to emphasize the “systematic examination”, not “in the form”, just grab a few items to do, even if it is “physical examination”. ② Checking health status: you have to seriously “check” the definition of health and the ten criteria issued by the World Health Organization (WHO). Because, many of them, is their own subjective feeling, others can not be clear. WHO’s definition of “health” is: the absence of disease and infirmity, and physical, mental and social adaptability are in good condition. Health “ten standards” are: 1, have plenty of energy, can calmly cope with the pressure of daily life, work, do not feel overly nervous; 2, optimism in the world, a positive attitude, willing to take responsibility, everything is not fussy; 3, good rest, sleep well; 4, strong resilience, able to adapt to various changes in the external environment; 5, able to resist common colds and flu. 5, able to resist general colds and infectious diseases; 6, appropriate weight, proportionate body, head, shoulder and hip position coordination when standing; 7, bright eyes, responsive, eyelids are not easily inflamed; 8, clean teeth, no cavities, no pain, normal gum color, no bleeding phenomenon; 9, shiny hair, no dandruff; 10, muscles, skin elasticity. After comparison, you may be the same as me, belong to the “sub-healthy people”. Don’t be nervous, only about 5% of the world’s people meet the ten criteria; about 70% to 80% of people, like us, are living in a “subhealthy state”. Although we are all in the same boat and belong to the same “sub-health” group, there is a great deal of “individual variability” in the performance, degree, and type of each person, and so far, there is no There is no objective, unified and scientific evaluation standard, and a hundred schools of thought and a hundred flowers have blossomed. Chinese medicine physical identification is a good option to give “health guidance” from the perspective of correcting the “deviant physique”. However, perhaps because of this, driven by the interest, some frauds under the signboard of “Chinese medicine”, also naturally “born”.