Cold and heat: (1) two of the eight principal syndromes indicating two main features of the nature of an illness. Generally speaking, cold refers to the syndrome caused by cold which diminishes vital functions; and heat refers to the syndrome caused by pathogenic heat inducing excessive vital functions. (2) describes chills and fever.

1. Qi Bo says, "When the evil wind permeates into the skin and is unable to flow through the meridians or leave the body." It is called pathogenic wind. Hey! Hey! Hey!
2. However, it swells rapidly and causes many diseases. I feel cold, very cold.
3. When the striae of the skin and muscle open, one feels cold.
4. When the flows of the skin and muscle close, one feels hot and becomes fidgety. Stop that! You're making me crazy! Oh, my God! Grandma is so angry!
5. If one feels chilly, he will eat little. I'm full. Only half a bowl of rice?
6. If one lgets a fever he will become thinner day by day. This gown is too loose. Am I much thinner? I get bigger every day and dad becomes maller.
7. The pathogenic wind reaches the stomach through the Yangming channel and continues to go upward to the inner canthus of the eye.
8. If the patient is fat, the pathogenic wind can't be expelled from the interior and will stay there. As a result, the eyeballs tum yellow. Why do my eyes 1ook so yellow? Why?
9. If the patient is thin, he feels cold and tears flows frequently since the yang qi is easily expelled.
10. The pathogenic wind invades the body through the Taiyang channel and permeates the various meridians and acupoints. It entangles with the defensive energy, resulting in the blockage of the meridians, swelling muscles, and inflammation of the skin. What a pain! It's so terrible! So red and  badly swollen!
11. If the defensive energy can not function, the skin will be insensitive. My hand can't feel anything, just like a piece of wood.
12. Lifeng or plague can occur when the pathogenic wind invades the meridians bringing heat, disturbing the nutrients and blood system, decaying the bridge of the nose, and inflamming the skin. Ma Ma, where is your nose?
13. The cold wind often stays in the meridians for a long time and is difficult to expel.
14. Lifeng is also called "chills and fever" at first because it appears as cold and heat at the start. Do you feel better now? Yes, much better.
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