Randy has corrected your entryt beautifully, so I just comment on some other things.

1.   Try not to use the word "oriental".  It has negative connotation to describe the race, the culture etc.  Use the more preferable word "Asian" instead.  Use "Chinese" if it is specific.  Here in this case, "Chinese" is the best since it is them who came up with this theory.

2.  I thought Ying is soft and Yang is hard.... I use the spelling as Ying instead of Yin to stress the balance in this theory.  Yin and Yang looks too asymmetrical to me.  Ying and Yang is more balanced and they differ only in one character.  Yes, I am a nitpicker :)

3.  So what happens when you have a fever and a cold ginger ale?  Ginger causes "heat".

The Principles of Yin and Yang and Medicine

Could you correct my entry though you are not familier with this principles?
Thank you in advance!

Last night I bought a bottle of soda because I felt like drinking a soda very much.
I talked to my doctor about this. What he explained me was very interesting. This is based on the principles of Yin and Yang. I want to share the oriental way of thinking with you.
When your body absorbs in fever, your temperature becomes high. If you drink a glass of soda, your cells and tissue will become soft and the fever will go off.
That is to say, because my body wanted to relese the heat last night , I came to have an urge to have soda.
He appllied this priciples of Yin and Yang to the European culture of eating.
European people have hard water. Hard water is used in cooking, of corse. Hard water make cells and tissues of humans hard. It means that a body become Yin. If you drink something Yang, a glass of wine, beer or soda, your body will become soft and keep in balance

The Principles of Yin and Yang and Medicine

Could you correct my entry, though you are may not be familier familiar with this these principles?
Thank you in advance!

Last night I bought a bottle of soda, because I felt very much like drinking a soda very much.
I talked to my doctor about this. What he explained to me was very interesting. This is based on the principles of Yin and Yang. I wanted to share the Oriental way of thinking with you.
When your body absorbs in fever, your temperature becomes high. If you drink a glass of soda, your cells and tissue will become soft, and the fever will go off subside.
That is to say, because my body wanted to release the heat last night, I came to have an urge to have soda.
He appllied applied this these principles of Yin and Yang to the European culture of eating.
European people have hard water. Hard water is used in cooking, of course. Hard water make cells and tissues of humans hard. It means that a body become Yin. If you drink something Yang, a glass of wine, beer, or soda, your body will become soft and keep in balance