Many people sometimes wake up with a slightly damp pillow or notice that they drool during their sleep. This phenomenon, called nocturnal salivation, is actually quite common and affects people of all ages.
Although it may seem embarrassing or surprising, drooling in your sleep is generally not a serious problem. In most cases, it's simply a natural bodily reaction during sleep.
However, this habit can also reveal some interesting things about your sleeping position, your breathing, or even your level of fatigue.
Understanding why this happens can help you get to know your body better and, if necessary, adopt some simple habits to improve your comfort during the night.
Why do we drool during sleep?
During the day, our body naturally produces saliva to aid digestion and keep the mouth moist. We usually swallow this saliva without even realizing it.
But when we sleep, several changes occur in our body.
Facial muscles relax, swallowing frequency decreases, and body position can prevent saliva from remaining in the mouth.
As a result, saliva can flow gently outwards, especially if the head is tilted or if the mouth remains open during sleep.
This phenomenon is therefore often linked to simple and natural factors.
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