The problem of salivation during sleep should not be ignored:

Drooling during sleep is a common phenomenon, but if it occurs frequently in adults, it can be a symptom of serious health problems.

Where does the saliva come from?

Salivary secretion is controlled by the autonomic nervous system, which acts involuntarily, as does heartbeat. The salivary glands in the mouth are divided into large and small salivary glands. There are three pairs of large salivary glands:

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