Relative debilitation of yin or yang refers to deficiency syndrome because " loss of essence leads to deficiency" . Relative debilitation of yang usually indicates deficiency cold syndrome due to insufficiency of yang and relative exuberance of yin in the body.

阴阳的偏衰指的是" 精气夺则虚" 的虚证。阳偏虚通常指由于身体阳气不足和阴偏盛而出现虚寒症状。