the Yin and Yang theory
Yin and Yang is a very important concept in
Traditional Chinese Medicine (TCM) as well as in whole Chinese
Culture. It is a way for Chinese to summarize the law of the
nature, to make complex things simple to understand and to
basic idea of the Yin and Yang theory is: the world, the nature
even the whole universe is consisted by two items: Yin and Yang.
Any thing or matter will belong to Yang, if
it is top or outside in position, if it is warm in temperature,
bright in light, active in activity, male in sex….. Any thing or
matter will belong to Yin, if it is in bottom or inside in
position, cold in temperature, dark in light, inactive in
activity, female in sex…
You can find the Yin-and-Yang relationship
in any aspects of our life. The morning is Yang, and the
afternoon is Yin. The day time is Yang and the night will be the
Yin. The summer is Yang, so the winter is Yin. The red color is
Yang, then the dark could be Yin. High temperature is Yang, then
low temperature is Yin. Growing is Yang, shrink is Yin. Young is
Yang, then old is Yin. Sun rise is Yang, then Sun set is Yin.
You can also say that husband is Yang and wife is Yin. The boss
is Yang and the employee is Yin. Teacher is Yang and student is
Both Yin and Yang is in a dynamic movement.
With more Yang in a thing, there will be
less Yin consistently. With more increase in the Yin, there will
be less Yang as well. When the Yang comes to its peak, it will
turn to its opposite: the Yin. In the same way, when the Yin
comes to its peak, it will also turn to its opposite: the Yang.
After the noon, the sun shine is reducing,
so the Yang is reducing, while the Yin is increasing. Upon
midnight, the Yin comes to its peak and then the Yin starts to
reduce and the Yang starts to accumulate again and reaches its
peak again at the noon.
Parents and children are also a
Yang-and-Yin relationship. The parents are in a dominating
position to grow up the children, so they are the Yang in the
family. With growth of the children, they becomes more
independent and have their own idea for life, so the Yang aspect
growing in children too. Upon the retirement of parents and the
complete independence of the children, the Yang aspects of the
parents reducing and the previous children becomes the Yang in
The Eastern is the Yang. If you go towards
the west, you are away the Yang and towards the Yin more and
more. When you come to the another side of the earth, you come
to the peak of the Yin. If you continue, you could go around the
earth and eventually move to the spot where you departed before.
The closer you go to that depart spot, you are towards more
Yang. When you come to that spot, the Yang come to its peak.
Once over the spot again, the Yang start to reduce and you are
more toward the Yin again.
Yin and Yang is transformable.
Any thing will go to its opposite after its
peak spot. No exception. Therefore no anything in the world can
exist for every as it is. Let’s see the
USA. No one doubt that it is
the only superpower in the world now, but why two planes that
made the crash of only two building in New York could make it so
citizen so often pretend to be Canadian when go abroad? Dose
this mean the US is most
superpower in the world ?
We say that parents should be kind to kid.
Can we be as much kind to our kids – meet their needs in any
aspects without any limitation and restriction to them? Can we
leave them grow without any unhappy to them? If we do so, I
believe that you, as parents, no longer a “kind” parent, but the
most “bad” parent – you destroy your kids makes them unable to
handle their later life.
Elephant is so big that it does not fear
the tiger or lion, but it fears rat. The biggest one fears the
smallest one. Similarly, human being can deal the bit by big
animals, but cannot handle the attack by bacteria, fungus, or
The improvement of science (the Yang) makes
the life of our human being much easier and comfortable (the Yin
aspect). However, it also makes our life in much more and more
in danger. The development of the nuclear bomb is a pending bomb
to everyone on the earth. The development of gene technique put
us in a future possible terrible attack of infectious diseases.
The modern life is more and more depending on electric and
computer. If anything happen to destroy the electric supply or
damage to computer, all of current civilization cannot be passed
to later generation. Our current scientific life is so fragile.
During the transfer from Yin to Yang and from Yang to Yin, the
Yang is the dominate power. It is due to the movement of Yang
that cause the increase and accumulation of the Yin.
Take an example, it is due to the increase
of Sun shine (it is Yang in this example) in spring, the plants
(it is Yin in this example) start to grow. Upon to the summer,
the Sun shine comes to its peak and after the summer, the Sun
shine reduces (the Yang reduces), and the plants starts to build
up its fruits (the accumulation of Yin).
We can regard the Sun and the Moon as Yang
and Yin. It is the Sun that gives the Moon the light. The Sun
should have more hot and bright than the Moon. This is the
“perfect” universe to us on the earth. Can we expect the Moon is
as the same level of bright and hot as the Sun? Can we live in a
universe as that?
A stable family is with a proper
Yin-and-Yang relation in it. No matter the husband or the wife
in the family is dominating, there should be only one in the
dominating position. The one in the dominating position should
enjoy to be in such position, the another one should be happy
too, to be in the following position. If it is not as such, the
family is unstable. Nowadays,
everyone want to be independent and in a dominating position. No
doubt that there is more conflicts in a Yang-Yang family then in
a Yin-Yang family.
Yin and Yang can be found in many aspects of the body
The Yin and Yang theory is very important
in the Traditional Chinese Medicine (TCM). The back of the body
is Yang and the front of the body is Yin. The outside of the
body is Yang, then the inside of the body is Yin. The top of the
head is Yang, then the sole of the feet is Yin. So the
acupuncture meridian that goes on the back of the body belongs
to the Yang meridian, and the meridian that goes in front of the
body belongs to Yin meridian.
Further more, the non-hollow organs in the
body, such as heart, the live, the kidney, the lung, the spleen
belong to Yin but the hollow organs, such as stomach, small
intestine, large intestine, gall bladder, urine bladder belong
When we consider the whole body structure
as Yin, then the functional aspect of the body will belong to
The Yin and Yang in a body can be exampled
as a cup of warm water. Here the water represents the Yin (the
structure of the body), then the warm temperature in the water
means the Yang of the body. A cup of cold water means there is
only Yin, but no Yang, so it is dead body. A cup of too hot
water represents too much Yang in the water. You cannot drink
it, so it is not the proper condition of a life either. Half cup
of warm water means both the Yin and the Yang in the body is
deficient. For a TCM doctor, we need to supply both Yin and the
Yang to patients. Half cup of cold water means both the Yin and
Yang is deficient, the body is close to die and the Yang needs
much more supplying first.
After attack by disease-causing factors,
such as bacteria, virus, physical or chemical influences, our
body could have two major reactions: Yin reaction or Yang
We call them Yin zheng or Yang zheng. Zheng
means syndrome or clinic manifestation. Patients with the Yin
zheng show tiredness, weakness, no ability to talk or do not
want to talk, palpitation after move or talk, cold limbs, likes
warm water, urine lots and the urine is clear as pure water.
They show as they are in an extremely low metabolic conditions.
People show such Yin zheng are usually those who just pass a
severe surgery stress, large volume loss of blood, heavy
radiation therapy or chemical therapy (cancer patients), and
patients with long term of chronic diseases. Those group of
patients, when attacked by the same amount of disease-causing
factors, react less sharp as the people with normally health
Patients with the Yang zheng show high
fever, lots of sweat, dry mouth and want to drink lots of cold
or iced water. They are irritable or lose conscience. Their
urine is little and the urine is dark yellow with strong odor.
They tend to have constipation and bloating stomach. Such Yang
zheng can be seen in typical acute lobar pheumonia in young
It should be pointed out that, as we
mentioned before that Yin and Yang is transferable, the Yang
zheng could show as a Yin zheng in clinic. For example in many
acute infectious diseases, when the syndrome comes to peak (the
body reaction is very strong), the body may show cold in limbs
with cold sweat, low blood pressure, weak heart beat, faster and
weak breath… all of which indicates a circulation shock as with
western medicine terms. In this stage of the disease, the herbs
used should be quite different from the ones used when the
patients showing the Yang zheng.
Clinic condition is very complex and it is
not at all easy to identify the true Yin zheng or Yang zheng
right away. It depends lots on the doctors’ clinic experience