However, further development of this pathological condition may transform into deficiency of both yin and yang due to the consumption of yin by yang, leading to such symptoms as emaciation, restlessness and even flaccidity.

然而，这种病理状况的进一步发展可能转化为阴阳的缺乏，由于阴损及阳，导致如焦虑、不安，甚至软弱无力的症状。

The causes of relative decline of yin are various, such as pathogenic factors of yang nature impairing yin, fire transformed from extreme changes of emotions damaging yin and consumption of yin due to prolonged illness.

阴偏衰多由阳邪伤阴，或因五志过极，化火伤阴，或因久病耗伤阴液所致。