There are many concepts of qi in Chinese medicine, such as ying qi, wei qi, zong qi, yuan qi, essence qi, zhong qi, etc.

All concepts of "qi" boil down to yang.

It is said that there are three fires in the human body, the king's fire, the phase fire and the center qi. The fire is the fire of the heart, also known as the heart yang, the fire of the king to bright, the heart yang, like the sun, shines on everything, providing the necessary power of the body's metabolism, the king of the fire is not clear, then the heart and spirit of the disturbed, spiritual decline.

　　Phase fire is a little bit of real sun in the kidney water, like the Tai Chi diagram of the large black in the white point, phase fire to the position in the kidney water hibernation, the so-called submerged dragon do not use, a little bit of real sun to warm the kidney water, the birth of the liver wood, the liver wood into the heart of the fire, if the phase fire is not in its place, cruising in the triple jiao is called the gallbladder fire, either to run to the head to cause a headache to the throat caused by a sore throat, wood and fire punishment of the gold caused by a cough, the subduing of the spleen and earth caused by coercive rib pain and abdominal pain, the kidneys water restlessness spermatorrhea Frequent urination and so on.

　　The center of the gas for the spleen to rise stomach down the source of power, clear gas left ascending spleen Lord ascending clear, for the essence of the turbid gas right down the stomach Lord down turbid, turbid water dregs discharged out of the body. In the qi enough body yang qi sufficient, fluid for yang qi, the so-called full body moisturizing skin if the rain irrigation, in the qi insufficient hair scorched, muscle fatigue, mental depression, atmospheric subsidence affects the heart yang.

The most direct way to replenish the middle qi is to strengthen the spleen and the stomach, and to raise the clearness and lower the turbidity. This can be done by using Li Dongyuan, tonifying the center of the body with qi soup, raising the yang and dispersing the fire soup, and raising the yang and benefiting the stomach soup.

The meaning of qi in general has two aspects: one refers to the flow of the body's nutritious subtle sophisticated substances, such as Ying Qi, Wei Qi, etc.; the other refers to the functional activities of the internal organs, such as the spleen, lungs, etc.. Zhongqi generally refers to the Qi of the spleen and stomach in the middle jiao. The middle qi from the spleen and stomach function includes the following two aspects: 1, the spleen and stomach and other internal organs to drink food digestion and absorption, transfer, ascending and descending turbidity and other physiological functions; 2, the main spleen qi to rise, but not to the uterus prolapse, prolapse, gastric ptosis and other visceral prolapse. Nutrition of the five viscera and organs, limbs and bones of the Ying Qi and defend the surface of the body against external evil Wei Qi are generated by the Qi, so the Qi is sufficient in the spleen and stomach function is strong, rich source of nutrition; Qi deficiency in the spleen and stomach function of the spleen and stomach weak and manifested as anorexia, abdominal distension, emaciation, mental fatigue, fatigue, poor resistance and other symptoms of spleen and stomach qi deficiency. In the case of a serious deficiency of the middle qi, there will be a prolonged diarrhea, prolapse of the anus, uterine prolapse, and other symptoms of the sinking of the middle qi. The Qi of Ying and Wei generated by the middle Qi is combined with the natural Qi, which is the Zong Qi. Zong Qi helps the lungs to breathe, all language, voice, breathing strength and Zong Qi related to the strength of the voice, so speak loud and strong often referred to as the full of gas.

To replenish the qi in the middle is also to replenish the qi of the spleen and stomach, in addition to maintaining a daily diet light and easy to digest, avoid eating spicy and greasy, do not overeat, do not favorites, to ensure adequate sleep, adhere to the appropriate exercise, medication is generally followed to replenish the middle and benefit the qi, strengthen the spleen and benefit the stomach, commonly used in Chinese medicine such as replenish the middle and benefit the qi pills, ginseng ling baijutsu powder, eight zhen granules, and so on. Usually, you can also use Codonopsis, astragalus and other qi tonic medicine to drink.