Astringent

Astringency: When the bitterness threshold of the taste cells of the tongue is reduced, the salivary gland secretion is reduced, and the tongue feels abnormal, the astringency may occur. Common people: People with neurosis or sleepless overnight are prone to suffer from astringent symptoms. Generally, it is only necessary to adjust the sleep time and use a sedative if necessary. However, it should be noted that some malignant tumors, especially in advanced stages, are more bitter.

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