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The vagus nerve is one of the most critical nerves in the body, and its proper function is essential to overall health and well-being. This nerve plays a vital role in regulating various bodily functions, including digestion, heart rate, and breathing.

That’s why keeping your vagus nerve healthy is important to prevent serious health issues.  But how do you know if your vagus nerve is functioning properly? Some key signs can indicate whether or not you have a healthy vagus nerve.

Let’s explore some simple signs to see if your vagus nerve is healthy and provide tips to help keep it in top condition.

1. Vagal Tone Test

Vagal tone refers to the strength and efficiency of the communication between the brain and the rest of the body through the vagus nerve. With the vagal tone test, you can easily find out the current condition of your vagus nerve.

The vagal tone test measures the activity of the vagus nerve and can provide information about a person’s overall health.

There are different ways to test vagal tones, such as heart rate variability (HRV) and respiratory sinus arrhythmia (RSA). Some studies have suggested that a higher vagal tone may be associated with better health outcomes, such as improved cardiovascular health and reduced stress levels.

2. Good Digestive Health

A healthy vagus nerve plays a crucial role in digestion, stimulating the production of digestive juices and enzymes. This nerve also plays a crucial role in regulating the movement of food through the digestive tract.

If you have a healthy vagus nerve, you’re most likely to experience good digestive health, which may manifest as:

  • Regular bowel movements
  • No digestive discomfort after meals
  • No bloating or gas
  • No acid reflux or heartburn

3. Balanced Heart Rate

The vagus nerve is responsible for regulating heart rate, which means that a healthy vagus nerve can help you maintain a balanced heart rate.

So, if you have a healthy vagus nerve, you will have:

  • A resting heart rate of between 60 to 100 per minute.
  • No sudden increases or decreases in heart rate
  • No arrhythmias or irregular heartbeats

4. Good Respiratory Condition

The vagus nerve also plays a critical role in controlling breathing so that a healthy vagus nerve can result in great respiratory health.

With a healthy vagus nerve, your respiratory system will work naturally, including:

  • Normal breathing patterns with no shortness of breath
  • No chronic cough or wheezing
  • Good lung function with no respiratory diseases

5. Stable Mood

It might come as a surprise, but the vagus nerve significantly impacts your emotions and mood. A healthy vagus nerve can help maintain emotional stability and reduce mental depression.

If you have a healthy vagus nerve, you are likely to experience:

  • Stable moods with no sudden mood swings
  • A positive outlook on life
  • Great stress resilience
  • Adequate emotional regulation

6. Sleep Quality

Like other bodily functions, the vagus nerve also regulates your sleep, and you can expect good sleep quality with a healthy vagus nerve. That includes:

  • No trouble falling asleep or staying asleep
  • A consistent sleep schedule with no disruptions
  • No sleep disorders

7. Immune Function

The vagus nerve plays a crucial in keeping our immune system stable. When the vagus nerve is healthy, it can help ensure that our immune system functions properly, such as:

  • No frequent infections or illnesses
  • Good wound healing and recovery time
  • No autoimmune disorders or chronic inflammation

8. Good Hormonal Balance

A healthy vagus nerve plays a big role in controlling hormones in the body. If your vagus nerve is in good shape, you might notice some positive effects like:

  • Regular menstrual cycles with no hormonal imbalances
  • No thyroid disorders or adrenal fatigue
  • Sound reproductive health with no fertility issues

Ways to Improve Vagus Nerve Function

You can significantly increase your vagus nerve functions with these easy techniques:

Deep Breathing

Deep breathing exercises, also known as diaphragmatic breathing, can help stimulate the vagus nerve and increase its function. To practice deep breathing, sit or lie comfortably and breathe deeply through your nose.

Hold your breath for a bit, then exhale slowly through your mouth after a few seconds. Repeat this process several times a day to enhance vagus nerve function.


Meditation is another powerful tool for improving your vagus nerve; it helps with relaxation and reduces stress levels. Practicing meditation for just a few minutes a day can significantly impact the vagus nerve.

When you meditate, you focus your attention on a specific object or thought, which helps quiet the mind and reduce stress. This activates the parasympathetic nervous system, stimulating the vagus nerve and relaxing your muscles.


Yoga is a gentle form of exercise that can help to stimulate the vagus nerve and gives you a feeling of relaxation.

When you practice yoga, you move your body in specific ways that help to activate the parasympathetic nervous system and stimulate the vagus nerve.

Try incorporating a few yoga poses into your daily routines, such as child’s pose, downward dog, or legs up-the-wall.

Cold Exposure

Exposure to cold temperatures can help activate the vagus nerve and improve its function. When exposed to cold temperatures, your body activates the sympathetic nervous system, which stimulates the vagus nerve. One way to practice cold exposure is to take a cold shower or splash your face with cold water for a few seconds.


The vagus nerve is an essential part of the body that needs to be healthy for our body to function properly.

If you are wondering whether your vagus nerve is healthy, follow the signs mentioned above: good digestive health, balanced heart rate, good respiratory health, and so on. Plus, you can expect better overall health and well-being by taking steps to improve vagus nerve function.