You Have a Super Highway in Your Body, and You May Not Know It

This superhighway that you may never have heard of is called the vagus nerve, and it may be one of the most important systems in the human body.

It’s a Super Highway because the nerve travels from the brainstem down through the neck and into the heart, lungs, stomach, liver, intestines and other organs. It’s like taking a trip to all the great National Parks in this country. This means it acts like a communication highway between the brain and the body.

So, when the vagus nerve is working well, the body tends to function in a calmer and more balanced way. Your heart rate stabilizes, digestion improves, inflammation decreases, and stress becomes easier to manage.

However, when what is called your vagal tone is in poor condition, the body can remain stuck in a constant “fight or flight” state. Over time, that can affect nearly every organ in your body.

Researchers are now looking at vagus nerve stimulation for conditions ranging from chronic pain and inflammation to depression and stroke recovery. 

Since the vagus nerve sends signals back and forth between the brain and many major organs, it influences everything from mood to immune function.

What I find especially interesting is that ancient healing traditions have long recognized the importance of calming the nervous system. Now modern science is finally catching up.

The vagus nerve is also closely tied to what is called the parasympathetic nervous system, which is also called the “rest and digest” system. This is the opposite of the body’s stress response.

This means when the vagus nerve is activated in a good way, breathing slows, blood pressure can lower, digestion improves and the body shifts into repair mode.

Now think about what chronic stress does to people today: Digestive problems. Anxiety. Insomnia. High blood pressure. Fatigue. Inflammation. Sound familiar? It does to a lot of folks. 

Many researchers now believe that what they call low vagal tone may play a role in these issues.

There is now growing interest in what is called polyvagal theory, which explores how the nervous system responds to stress and trauma. 

One study explains how the nervous system constantly scans for danger, even at levels below conscious awareness, and this affects emotional and physical health.

So…what can you do to get this Super Highway working so you can cruise along at high speeds?

It turns out that many of the methods used to strengthen the vagus nerve are simple and natural.

Here are some of them (I’ve listed a bunch, so that you can find, at least one or two to do regularly).

1.   Deep, slow breathing is actually one of the best tools you can use. Breathing slowly from the diaphragm sends calming signals through the vagus nerve. Even five minutes a day can help shift the body out of stress mode.

A simple method is:
Inhale slowly through the nose into the diaphragm for a count of 4
Exhale slowly through the mouth for a count of 6

Keep in mind that deep belly breathing works better than shallow chest breathing because the diaphragm is closely connected to vagus nerve activity.

2.   Another technique is humming, singing, and chanting, which may also stimulate the vagus nerve because it connects to the vocal cords and throat muscles. This may explain why singing in choirs or listening to calming music can feel healing.

3.   Cold exposure is another technique many people swear by. It can be as simple as splashing cold water on your face or ending a shower with cold water (and no, you don’t have to do a plunge into ice water!)

4.   Meditation and prayer can also strengthen vagal tone. Many studies have shown that regular meditation helps regulate stress hormones and calm the nervous system.

5.   Exercise is important too, especially walking, yoga, and tai chi. Movement helps regulate the nervous system and improve circulation throughout the body.

6.   Gut health also matters because the vagus nerve is deeply connected to digestion. Eating whole foods, reducing ultra-processed foods, and supporting the microbiome may positively influence vagal function.

7.   Another often overlooked factor is our social connections. Positive relationships, laughter, and feelings of safety in our relationships all support the vagus nerve. Chronic isolation and emotional stress can do the opposite.

All of this highlights how interconnected the body truly is. The vagus nerve reminds us that mental health, digestion, inflammation, immunity, and heart health are not separate systems operating alone. They are constantly communicating!

Researchers are even studying medical vagus nerve stimulation devices for epilepsy, inflammatory diseases, and treatment-resistant depression. 

While some of these therapies are still evolving, they show how central this nerve is to overall health. The vagus nerve is not our Super Highway for Nothing!

So…anybody for breathing, humming, meditating, and taking a walk. And no…you don’t have to do them all at once. Just pick one or two to start on your drive along your Super Highway to Better Health!