• Journal of Korean Medical classics
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• v.19 no.1 s.32
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• pp.1-15
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• 2006

UNGI(運氣) theory is one of the most important theory in Oriental medicine. But it's so difficult to adapt to real medic. Long time ago many Oriental Physicians disscussed this with other physicians, UNGI to Oriental Medicine, and so still now. Remarkably, it is important as a basic theory itself, UNGI exist as a special medic. We can see that in the book of ‘五運六氣韓醫學寶鑑’, ‘運氣演繹方藥篇’ and other such kind of books. The special thing is we can predict each man's disease through the date of his birth. And more, we can make out prescription for each person's health. In addition, by knowing his date of birth, we can calculate his date of pregnancy, and with the same way, we can also predict and prescript that he can be protected from his fateful disease. But, the way like this can make Oriental medic an astrology and a superstition. So I studied on this and concluded as follow, 1. UNGI theory is important in the Oriental Medicine not only in basic but on diagnosis and attendance. 2. Mechanical abuse in the past, make UNGI theory unbelievable. But Liu Ha-gan(劉河間) studied so deeply, and knew the right way to applicate UNGI theory on Oriental medic. 3. It is not logical the pregnant day counted thru birthday, so we have to percept this an abstract idea. And it founded detail way to count the pregnant day. 'UNGI' as a medical system, by knowing his birthday we can predict and prevent his fateful disease. Of course, I cannot find such substances in Neijing, and classic books on Oriental medicine. So queer at a glance, but clinically it has some valuable meanings. However, There's little to prove its foundation. It is similar to astrology, we cannot define its base. The problems we have to trace and find out.