In TCM, qi is considered as the fundamental substance of the human body, and its movements explain various life processes.
Vital energy Qi
Qi
in its physiological sense constitutes, replenishes and nourishes the
human body. Qi is often mentioned as vital energy, because it is
believed to be the motive energy derived from the essential substance
for different vital processes.
Classification of Qi
Qi is classified according to what it motivates on. For example,
- Heart-qi
refers to the motive force with which the heart works and the blood
circulates, so it regulates the cardiac function;
- Stomach-qi refers to the motive force with which the stomach functions, so it regulates the gastric function.
- Zheng-qi refers to the motive force with which the defense functions, so it generates resistance against diseases.
- Yang-qi refers to the motive force with which the body warmth is maintained, that is it maintained normal body temperature.
Formation and function of Qi
Qi
is formed from the inhaled oxygen, the dietary nutrients, and the
inborn primordial qi stored in the kidney, which is genetically
transformed from their parents. Qi circulates along meridians and
collaterals. A healthy individual requires normal circulations of qi,
any stagnation or restriction of this circulation develops health
problems. The circulation of qi is disturbed or stagnated by mental or
emotional conditions. For example, anger may lead to dizziness,
headache, or distention of the stomach with impaired appetite. On the
other hand, the exercise of mind such as qigong can support the
circulation of qi.
