Relative debilitation of yang is mainly caused by congenital deficiency, or postnatal malnutrition and endogenous impairment due to overstrain, or consumption of yang qi due to prolonged illness.

阴偏衰主要由于先天禀赋不足，或后天饮食失养和劳倦内伤，或久病损伤阳气所致。

Relative debilitation of yin refers to a morbid state marked by relative exuberance of yang due to loss or consumption of essence, blood and body fluid and failure of yin to control yang.

阴偏衰是指由于精气津血的耗损或丢失、亡阴不制阳而导致的阳偏盛的病理状态。

Disharmony between yin and yang refers to the relative exuberance or debilitation of yin and yang or failure of yin to control yang or yang to control yin due to various pathogenic factors.

阴阳失调是指阴阳偏盛或偏衰，或因各种致病因素导致阴不制阳或阳不制阴。

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。