Qigong is the art of health improvement practiced in China. It plays an active role in the prevention and treatment of diseases, the preservation and strengthening of health, the resistance to premature aging and the prolongation of life.
Methods of Qigong exercises are varied in different schools. In China there are about five of them: Daoism, Buddhist, Confucian, Medical and Boxing.

In medical school, the main goal is to perform exercises for the treatment of diseases, health promotion and life extension.
The human body has a special system that connects the surface of the body with internal organs, the upper body with the lower one, and also connects all solid and hollow organs. Meridians and collaterals brace the whole body and lead it into organic unity by combining its different parts. There are 12 regular meridians leading to dense and hollow organs. In addition to these main routes of life energy (internal Qi), there are eight other important meridians. These eight meridians are not directly connected with internal organs. They have special unusual ways and functions; therefore they are called extraordinary or wonderful.

When the vital energy of the Qi flows over the meridians in excess, it is discharged into eight wonderful channels for storage. When the inner Qi is not enough in the regular meridians, stored in miraculous canals, it returns back to the meridians. These twelve meridians are like rivers and canals, and eight miraculous ones are like lakes.

Any obstruction in the meridians in Chinese traditional medicine is described as "clogging that occurs before pain." When the meridians and collaterals in the body are clogged, a person falls ill. Medications, acupuncture and massage are useful therapies used as an external force to purify meridians and collaterals. Self-managed Qigong therapy is used to purify meridians and collaterals, using only the body’s own reserves in healing diseases.