Open your mouth in front of the mirror and say “aaa” - a simple test for the vagus nerve

Neurology experts explain how a small observation in the throat can provide signals about the balance of the nervous system
In recent years there has been more and more talk about vagus nerve, one of the most important nerves in the body. According to medical literature and scientific evidence NCBI StatPearls, this is the longest nerve of the parasympathetic nervous system and constitutes a direct connection between the brain and many internal organs, including the heart, lungs, and digestive tract.
This nerve plays an important role in regulating many vital processes, such as heart rate, breathing, digestion, and the body's response to stress. When its function is in balance, the body moves more easily from a state of tension to a state of calm, contributing to emotional stability and overall well-being.
However, when its function is weakened or disrupted, symptoms such as fatigue, irritability, anxiety, digestive problems, or a constant feeling of tension may appear.
A simple way for an orientation assessment
In the neurological examination of the cranial nerves, doctors often use a very simple method to assess the function of the vagus nerve and the glossopharyngeal nerve. According to the clinical guidelines described in NCBI and in neurological examination manuals, the patient is asked to open their mouth and say "aaa", while the doctor observes the movement of the soft palate and the back of the throat.
A similar observation can be done at home. Stand in front of a mirror, open your mouth, and with the help of a spoon, lightly press your tongue to see more clearly. the soft palate, the small structure that hangs in the middle of the throat.
According to descriptions in the neurological literature published in StatPearls and TeachMeAnatomyIf the vagus nerve is functioning normally, this structure usually lies in the middle and rises symmetrically when the sound “aaa” is pronounced.
If it deviates significantly to one side, this may suggest a weakening of the function of one of the nerve branches that control this area. However, such an observation does not constitute a diagnosis and always requires evaluation by a specialist doctor, reports the Telegraph.

How does the autonomic nervous system work?
The autonomic nervous system controls many processes that occur without our will, such as heartbeat, breathing, and digestion. It consists of two main parts:
• the sympathetic system, which activates the body in stressful situations
• the parasympathetic system, which helps the body calm down and recover
According to studies published in the neurological and physiological literature, these two systems operate in a constant balance. When one becomes more activated, the other usually calms down, so that the organism can maintain the stability of vital functions.
When this balance is disrupted, symptoms such as chronic fatigue, increased sensitivity to stress, insomnia, or difficulty concentrating may occur.
Why is the vagus nerve important?
According to the studies summarized in NCBI and clinical physiology literature, good vagus nerve activity is associated with:
• better stress regulation
• heart rhythm stability
• better digestive system function
• more stable emotional well-being
Practices such as deep breathing, physical activity, meditation, regular sleep, and certain relaxation techniques have been shown to help stimulate this nerve and improve the balance of the autonomic nervous system.
However, experts emphasize that a simple mirror test cannot replace a medical examination and should only be seen as a guiding indicator.

/Telegraph/





















































