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How to Stimulate the Vagus Nerve for Better Mental Health

Quick Answer: The vagus nerve can be stimulated through deep diaphragmatic breathing, meditation, humming, cold exposure, and proper cervical spine alignment. These techniques activate the parasympathetic nervous system, part of the autonomic nervous system, helping regulate stress, heart rate, digestion, inflammation, and overall mental health.

KEY TAKEAWAYS

What does the vagus nerve do?

The vagus nerve helps regulate your mood, digestion, heart rate, inflammation levels, breathing patterns, and overall stress response. It is the main nerve of the parasympathetic (“rest-and-digest”) nervous system.

Deep diaphragmatic breathing, especially techniques like box breathing or slow exhalations, is one of the quickest ways to activate vagus nerve pathways and shift the body into a calmer state.

Yes. Research shows that vagus-nerve-activating activities can improve anxiety, stress resilience, mood regulation, and emotional balance by activating parasympathetic pathways that calm the nervous system.

Breathing exercises, meditation, light exercise (like walking), cold exposure, laughter, humming or chanting, and eating foods that support gut health all help stimulate the vagus nerve.

Yes, most natural vagus nerve techniques are safe for everyday use. However, if symptoms persist or worsen, evaluation by a healthcare professional is recommended.

If stress, anxiety, digestive issues, dizziness, or nervous-system symptoms continue despite at-home methods, a chiropractor or integrative provider can assess whether cervical spine tension or structural imbalance is affecting vagus nerve function.

The vagus nerve is part of your autonomic nervous system and is a massively important nerve. It carries an extensive range of signals and is responsible for several internal organ functions, the four key functions are:

  • Special sensory – controls the taste sensation behind the tongue
  • Motor – Provides movement for the muscles in the neck that are responsible for swallowing and speech
  • Sensory – Includes the heart, lungs, throat and abdomen
  • Parasympathetic – Controls the digestive tract, respiration, and heart rate


The vagus nerve is the longest cranial nerve, running from the brain stem to part of the colon, which is why it affects so many functions of the body.

How Can You Stimulate the Vagus Nerve Naturally?

The vagus nerve system acts to counterbalance our fight or flight system and trigger a relaxation response in our body. If you’re trying to figure out how to stimulate the vagus nerve for mental health improvements, a better immune system or overall health, there are a few ways of doing this.

The vagus nerve is the main nerve of the parasympathetic nervous system, and natural stimulation techniques such as breathing, meditation, diet, and cervical spine alignment help regulate the autonomic nervous system to reduce stress and improve mental health.

How Does Deep Breathing Stimulate the Vagus Nerve?

Deep diaphragmatic breathing activates the parasympathetic nervous system through the vagus nerve, the longest cranial nerve involved in regulating heart rate, respiration, digestion, and emotional balance.

Breathing is vitally essential to our lives and the vagus nerve is responsible for helping the lungs to fill up fully and to relax. Some specific breathing exercises can help to bring the vagus nerve back into balance. The moment we begin to feel stress, we may tend to stop breathing or hold our breath. Breath holding activates the fight or flight response. Box breathing may help with this.

  • Begin by breathing out slowly, releasing all the air in your lungs
  • Breathe in through your nose and slowly count to four in your head, be mindful of the air filling your body
  • Hold your breath for four seconds
  • Exhale for four seconds
  • Hold your breath for another four seconds
  • Repeat this process four times


It may be difficult at first to keep your breaths steady, but with more practice your body will become accustomed to it. This engages your diaphragm and your lungs in helping to breathe, which is important because that vagus nerve controls the diaphragm as well as the esophagus and airways.

Does box breathing activate the vagus nerve?

Yes. Box breathing activates the parasympathetic nervous system by stimulating the vagus nerve, helping regulate heart rate variability (HRV), reduce stress hormones, and calm the autonomic nervous system within just a few breaths.

Most studies suggest practicing deep diaphragmatic breathing for 5–10 minutes daily to improve vagal tone and promote better stress regulation, digestion, and emotional balance. However, 1-2 cycles a day as outlined above would be best.

Which Foods Support Healthy Vagus Nerve Function?

Nutrition plays a major role in the gut–brain axis, a communication pathway heavily influenced by the vagus nerve, which helps control digestion, inflammation, and mood regulation.

For many people this is one of the most challenging and overwhelming parts of managing and balancing the vagus nerve. The vagus nerve can become off balance and it controls a lot of digestive function, which can lead to bacteria growing in the digestive system. There are a few foods that can help ensure your vagus nerve stays healthy.

  • Fish – Fish contains omega-3 fatty acids which are valuable to the body as well as the cardiovascular system. It could also help with vagus nerve function as it lowers the heart rate and supports circulation.
  • Probiotics – Probiotics are known to encourage a healthy gut and digestive tract, which in turn aids the vagus nerve function. Probiotics can be taken in pill form but can also be found in some foods like fruit and yogurt.
  • Leafy Greens – Especially spinach and kale, which are high in amino acids that your body needs to support the inflammatory response within the gut, which will allow for the vagus nerve to function better.
  • Zinc- Poultry is a good source of zinc, as well as things like chickpeas and almonds. Zinc will also allow your vagus nerve to function better.


Proper nutrition to reduce inflammation and maintaining the best balance within the gut can allow the vagus nerve to get back to what it needs to do.

Do probiotics stimulate the vagus nerve?

Yes. Probiotics support the gut–brain axis, which communicates with the brain through the vagus nerve, helping regulate inflammation, digestion, and mood. A healthy microbiome improves vagal signaling.

Foods that increase inflammation, such as processed sugars, fried foods, artificial additives, and excessive alcohol, can disrupt the gut–brain axis and weaken vagal tone, making symptoms like stress and poor digestion worse.

How Does Laughter Stimulate the Vagus Nerve?

Laughter activates the vagus nerve by stimulating the diaphragm and abdominal muscles, which directly influence the parasympathetic nervous system and emotional regulation.

Ever heard of laughter sometimes being the best medicine? It’s no different when learning how to stimulate the vagus nerve. Laughter causes the stomach muscles to contract, which may also stimulate the vagus nerve. There have been many studies that show laughter can help balance out your life and cause your body to start healing and rejuvenating.

Can laughing really activate the vagus nerve?

Yes. Laughter stimulates the diaphragm, which directly activates the vagus nerve and boosts parasympathetic activity, helping reduce stress and improve mood regulation.

Smiling lightly stimulates facial muscles connected to the cranial nerves, which can support vagal activation, though the effect is typically weaker than full, deep laughter.

Can Light Exercise Help Stimulate the Vagus Nerve?

Gentle physical activity such as walking improves vagal tone, a measure of how effectively the vagus nerve regulates the parasympathetic nervous system, stress hormones, and overall mood.

Something calming and easy that’s not vigorous, like taking a walk, is a great way to destress and also help your vagus nerve. People who engage in regular walks see a significant reduction in anxiety and perceived stress, as well as a better overall mood and physical health.

Is walking the best exercise for vagus nerve stimulation?

Walking is one of the easiest and most effective vagus-nerve–friendly exercises. It improves vagal tone, reduces cortisol, boosts mood, and helps regulate the autonomic nervous system.

Aim for 20–30 minutes of light walking most days of the week. Regular gentle motion consistently improves vagus nerve function and stress recovery.

How Does Meditation Improve Vagus Nerve Function?

Meditation stimulates the vagus nerve by activating parasympathetic pathways that control emotional regulation, heart rate variability (HRV), and the body’s stress response.

There has been a lot of research that suggests the psychological benefits of meditation may be linked to the functioning of the vagus nerve. It can help with decreasing aggression, depression, and anxiety as well as promote overall better moods while giving off a calming, relaxed feeling.

Whatever meditation works best for you is the best kind to do – some like a guided meditation, while others prefer to focus on the breath. The key is finding a meditation practice that works for you, and there are many resources for you to use such as apps specifically designed to help get you into meditation. Additionally, with meditation making a noise or an ‘arm’ or a ‘mmm’ really helps with stimulating the vagus nerve. 

Does humming or chanting stimulate the vagus nerve?

Yes. Humming, chanting, and “OM” vibrations stimulate the vagus nerve branches in the throat, activating parasympathetic pathways and improving heart rate variability (HRV).

Even 10–15 minutes of meditation a day can improve vagal activity. Longer or more consistent practice enhances emotional regulation and reduces stress responses.

Can Poor Spinal Alignment Affect the Vagus Nerve?

The vagus nerve exits the brainstem and travels through the cervical spine, meaning misalignment in the upper neck can interfere with vagal signaling and disrupt the autonomic nervous system.

Most people don’t realize that posture and spinal alignment can directly influence vagus nerve function. Because the vagus nerve originates at the brainstem and passes through the upper cervical region before branching to the heart, lungs, and digestive organs, any structural tension in the neck can affect how well these signals travel.

When the cervical spine is stretched, compressed, or positioned abnormally, often from poor posture, previous injuries, or long hours at a desk, it may place stress on the nerve. This can contribute to issues like increased stress responses, trouble regulating digestion, or difficulty calming the nervous system.

If you’ve tried breathing exercises, meditation, nutrition changes, and other vagus-nerve techniques without improvement, misalignment in your neck may be the missing factor.

Can neck misalignment cause vagus nerve dysfunction?

Yes. Because the vagus nerve exits the brainstem and travels through the upper cervical spine, misalignment in the neck can compress or irritate the nerve, disrupting autonomic regulation.

Corrective chiropractic adjustments that restore normal cervical alignment can reduce tension on the vagus nerve, potentially improving parasympathetic function, digestion, stress response, and heart rate variability. The vagus nerve exits the Jugular Foramen in the Skull and travels close to the cervical spinal cord. Problems with the cervical spine can cause problems to the vagus nerve.

how to stimulate the vagus nerve

How Can a Chiropractor Improve Vagus Nerve Health?

A corrective chiropractor evaluates the cervical spine, where the vagus nerve originates, to identify postural or structural issues that may impede parasympathetic nerve function.

A corrective chiropractor will work to measure your spine to know if it’s in a normal position or an abnormal position. If the spinal cord is in a wrong position, or abnormal position, it’s going to put tension on that spinal cord, which means all of the breathing exercises, nutrition, exercise and meditation is not going to help until we take the pressure off of the spinal cord. 

We offer an in-depth exam to determine exactly what we can do to help with as much detail for you as possible. It is called the 3-Dimensional BioStructural Analysis, and the process involves the following:  

  • Timeline history
  • Digital posture exam
  • 3-Dimensional posture exam
  • Chiropractic, Neurological, and Physical Exam
  • Spinal radiographs (if needed)
  • Digital biomechanical analysis of your spine
  • Insurance verification (by our insurance team)
  • Separate time to go over the results of your test within a day or two, where we will go over:
    • What is going on
    • If we can help
    • What the best next step is for you
    • Any investment in your health that is necessary

If you’re interested, you can schedule an appointment for a 3-Dimensional BioStructural Analysis here. If you’d like tips on how you can stay healthy and well without drugs and surgery, go ahead and check out other articles on this site. If you continue to struggle with vagus nerve health or want more information on how to stimulate the vagus nerve, give us a call at Align Wellness Center 847-564-9500 or schedule an appointment online. Contact us today or stop by the office. We’re located at 900 Skokie Blvd., Suite 113, Northbrook, IL, 60062.

Frequently Asked Questions About How to Stimulate the Vagus Nerve

What are the signs of poor vagus nerve function?

Signs of reduced vagus nerve function may include digestive issues, irregular heart rate, anxiety, shallow breathing, inflammation, poor stress resilience, and difficulty calming down. These symptoms reflect reduced parasympathetic activity in the autonomic nervous system.

Most people notice improvements in vagal tone within 2–6 weeks of consistent stimulation techniques such as deep breathing, meditation, humming, and gentle exercise. Structural issues like cervical misalignment may take longer and require professional care.

Yes, most natural vagus nerve exercises are safe. Techniques like deep breathing, cold exposure, meditation, and humming activate parasympathetic pathways gently. Seek medical guidance if you experience dizziness, fainting, heart symptoms, or worsening anxiety.

Yes. The vagus nerve influences heart rate variability (HRV), gut–brain communication, and stress hormone regulation. Reduced vagal activity has been linked to increased anxiety, low mood, and difficulty relaxing. Improving vagal tone may support emotional regulation.

Cold exposure, such as splashing cold water on the face, cold showers, or brief cold immersion, activates the diving reflex, which increases vagal activity, slows heart rate, and shifts the body into a parasympathetic, calmer state.

Excessive stimulation is rare but possible. Too much vagal activation can lead to dizziness, nausea, slowed heart rate, or lightheadedness. This is more common in people with cardiovascular issues. Stop immediately if symptoms occur and consult a professional.

Yes. Daily vagus nerve exercises help maintain healthy parasympathetic activity, improve stress response, and support emotional balance. Breathing, meditation, and light movement are safe for everyday practice; structural issues may need professional correction.

Seek professional evaluation if symptoms such as chronic stress, digestive issues, dizziness, persistent anxiety, or poor recovery from stress do not improve with home techniques. Cervical misalignment or neurological issues may require expert assessment.

About Dr. Gregg Gerstin, DC, CBP

Dr. Gregg Gerstin is the lead chiropractor at Align Wellness Center in Northbrook, IL, where he has cared for the North Shore community for over 18 years. He is Advanced Certified in Chiropractic Biophysics (CBP) and a ScoliBrace provider, specializing in scoliosis and spinal deformities.

Dr. Gerstin earned his Bachelor’s in Kinesiology from the University of Michigan, where he also served as a student athletic trainer for collegiate teams. He works with patients of all ages — from newborns to seniors — to remove barriers to healing and restore natural alignment.

Beyond his clinical practice, Dr. Gerstin is active in local nonprofits and enjoys triathlons, family time with his wife and children, and their dog Gracie.

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