(pronounced 'way') qi ('chee') is the protective qi. This qi is thought to circulate in the more superficial levels (skin and muscles). In biomedical terms it is probably not the entire immune system but the part of it that deals with external invasions. Protective qi is controlled by Lung organ-system and can be compromised by overwork grief smoking not eating and talking too much.
Vulnerability occurs particularly when you are tired or from excessive environmental influences like cold heat dryness and dampness- each of these is associated with a ...
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