The theory of chinese medicine (tcm)- Qi, Blood and Fluid(1)
Qi, blood and body fluid are the basic substances
of the human body, and are the basis of all its physiologic activities. Qi is a kind of energy , flowing
around the whole body to maintain its life activities, while blood
and body fluid are the nourishing and moistening substances, circulating in every corner of our body. It is really important
to note that qi belongs to yang while blood and body fluid belong to yin.
Concept of Qi
Qi is the virtual substance, and its concept is based on the ancient Chinese understanding
of natural phenomena. It is thought to be the most basic substance of the world. Both everything and every phenomenon in
the universe result from the movements and changes of qi. In the human body, qi is
the vital substance constituting it, and maintaining its life activities.
Qi is able to go around all the body. The routes through which qi goes, are called
the channels that connect acupunctural points to be explained later.
The Function of Qi
Promoting function : Qi promotes the growth of the human body by activating the physiological
functions of organs and tissues, and by helping the production and circulation of both blood and fluid. The deficiency of qi causes the retardation of the growth, hypofunction
of organs, the insufficiency and stagnation of blood and fluid, leading to a variety
of symptoms such as general fatigue, anemia, loss of appetite, diarrhea etc.
2. Warming function
: Qi keeps our body temperature on a constant level by its warming action. This is why the
deficiency of qi results in hypothermy, cold
limbs syndrome etc.
3. Defending function : Qi defends our body on the surface from
external pathogens like virus and bacteria. It means external pathogen
can not easily invade our body if qi works well. So we could say qi has a kind of the immune
function. People with weakened qi are susceptible to common cold, pneumonia and
4.Transformative function : It means all the function concerning to the metabolism and the transformation of qi, blood and fluid.
5. Containing function : Qi prevents the extravasation of blood by controlling it, excessive loss of body fluid by adjusting the secretion of sweat as well as the excretion of urine. In addition, Qi consolidates organs to prevent them from drooping below their normal positions.
The Formation of Qi
Qi has two different sources
: one is "vital substance" inherited from parents, the other is food, water and
air. The vital substance is stored in the KHS (Kidney and Hormonal System) after inherited from parents.
It is called "essential qi".
Fresh air is transformed into "cosmic
qi" after inhaled into the LIS (Lung and Immune System), while food and water are converted into
"digestate qi" by the DAS (Digestive and Absorptive System). Both of qi's are then combined with each other, to become "ancestral
qi". Finally the ancestral qi is combined with "vital substance". This is "original qi", the basic form of qi.
Classification of Qi
The basic form of qi is "original
qi", which is the most important of all. "The original qi" circulates
throughout the whole body, activating and promoting
its vital activities.
The qi gathering in the chest is called "ancestral qi". The
functions of "ancestral qi" are as follows:
the respiration ------ the strength of breathing and voice is related
with "the ancestral qi".
regulate the heart beat and
blood circulation ------ heart beat and blood circulation as well as
the temperature of the limbs depend upon "the ancestral qi".
Qi ( Construction Qi )
The qi, circulating with
blood through the vessels , is called "nourishing qi". It derives mainly from food essence,
and its functions are as follows:
the entire body
Defending qi flows outside the channels, and its functions are as follows:
defend our body surface to prevent the invasion of exopathogens
warm the organs
The Qi of Control System (Organ Qi)
Every control system has its own qi.
The qi of control system promotes and activates the physiological function.