Meridian is like a spatial channel. “Meridian” has the meaning of the path, “Luo” has the meaning of the network, the meridians are like paths and water networks to contact small towns and villages, spread throughout the body, connecting the body’s internal organs and tissues and organs; qi and blood running in them, conveying nutrients and information, so the meridians are running The meridians are the channels that run the whole body, contacting the organs and limbs, and communicating with the surface of the upper and lower channels. It is very simple to understand that if the channel does not work, there will be a lot of diseases naturally. As usual, we often hear and mention the state of sub-health is the typical performance of the meridians do not work. According to the meridian theory, all the functions of the human body are carried out under the control of the meridian system; the meridian is out of control is the reason for the formation of the disease; and the healing of the disease is the meridian to play the role of adjusting the results, so the meridian is the human body’s health care system. Symptoms of qi and blood blockage symptoms are commonly seen as follows: 1, often speak breathless, no appetite; 2, pale or dull; 3, often chest tightness, panic, dark lips; 4, the emergence of coercive pain, abdominal distension, etc.; 5, limbs easy numbness, or even pain, blocked against cold or fever. Modern people meridian blockage (sub-health) – the source of disease “pain is not pass, pass is not pain”, the essence is to refer to the meridians, that is, the human body’s pathology is mostly due to the meridian blockage. If the meridians and blood stagnation and not smooth, it will cause pain or swelling in the relevant parts of the qi and blood stagnation and heat, red, swelling, heat, pain, etc. (meridians of the actual evidence). If there is insufficient qi and blood circulation, there will be numbness and insensitivity at the lesion site, soft and shriveled skin and loss of function (deficiency evidence of meridians). If the yang qi of the meridians, i.e. wei qi, is insufficient, symptoms such as localized coldness or generalized coldness will occur (yang deficiency is cold). If the yin qi of the meridian, i.e. ying qi, is deficient in blood and the yang qi is hyperactive, phenomena such as five heartburns and heat will occur (yin deficiency leads to internal heat). Do not necessarily be pain, in addition to not through the pain in addition to “not honor is pain,” meaning that the deficiency of qi and blood can not be moistened sinews and bones, can also lead to pain, not that the pain is not caused by.