One of the factors that has sparked the most interest among specialists is insulin resistance , a condition that can develop silently over years. When the body has difficulty processing glucose properly, indirect effects can occur, such as decreased saliva production or increased fluid loss during the night. This not only impacts the sensation of dry mouth but also sleep quality and energy levels upon waking.
There are also other signs that can accompany this symptom and that often go unnoticed. For example, persistent fatigue throughout the day, especially in the afternoon, can be linked to fluctuations in glucose levels. It is also common to notice a strange taste in the mouth upon waking, which can be related to metabolic or digestive processes. In some cases, there are frequent nighttime awakenings or mild discomforts such as tingling in the extremities.
Another aspect to consider is the possible presence of respiratory problems during rest, such as mouth breathing or certain sleep disorders. These situations can contribute to dryness, since constant airflow reduces the natural moisture of the oral cavity. In turn, they can influence the feeling of not having rested enough, even after several hours of sleep.
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