Opinion:Yin deficiency is mostly due to blood deficiency, "Yin deficiency generates internal heat", manifested as five heart heat, dry mouth

The throat is dry, the God is annoyed with the gas thick, yellow urine and dry stools, etc.; physical weakness, palpitations, shortness of breath, dizziness, poor mental state; irregular menstruation, the face of the colorless, melanin, chloasma, butterfly spots breeding; menopausal disturbances ; premature menopause; generally more common in women, a variety of hyperfunctioning diseases such as tuberculosis, long-term low fever.

Yin deficiency should eat more food to nourish kidney yin, to nourish yin and submerge yang for the method.