How can it cause yin deficiency?

Yin deficiency may be caused by excessive use of warm and dry products, depression, prolonged illness and other reasons.

1.

Excessive use of warm and dry products may consume yin fluid in the body. Because there is not enough yin fluid to nourish the body, yin deficiency will occur.

2. Depression and

long-term depression will lead to liver qi discomfort, affecting the operation of liver qi. Liver qi may stagnate, turn into fire, damage liver yin, and then lead to yin deficiency.

3. Chronic illness

will consume one's own qi and blood. Long time will cause deficiency of qi and blood, unable to protect the kidneys, causing kidney yin deficiency, so yin deficiency will occur.