You May Need a Vagus Nerve Reset. Here’s How to Do It

Understanding the Role of the Vagus Nerve in a Number of Organ Systems and How It Impacts Your Health and Well-Being

By now, most people have heard about the vagus nerve.

It is often described as the master regulator of stress, digestion, heart rate, and inflammation. And that is largely true.

But now you may be wondering whether yours is functioning well and what you can do if it isn’t.

A vagus nerve reset is simply a way of improving vagal tone, which reflects how effectively your body moves into a calm, restorative state after stress.

Here is what that actually looks like in practice.

What Is the Vagus Nerve?

The vagus nerve is the 10th cranial nerve and the longest nerve in the body, and a major regulator of your overall health 1 2. The vagus nerve originates in the brainstem and travels down the neck, branching out into the chest and abdomen, connecting the brain to the heart, lungs, and digestive tract.

The vagus nerves contain both motor and sensory fibers that transmit nerve impulses to and from the brain. The sensory fibers can detect pressure, pain, stretch, temperature, chemical stimuli, osmotic pressure, and inflammation in the organs. The motor fibers supply muscles of the pharynx and larynx that we use for swallowing and speech 1 2.

Because of this wide reach, the vagus nerve plays a central role in regulating heart rate, digestion, inflammation, and your ability to shift into a calm, restorative state.

If you have ever fainted at the sight of blood or during intense stress, you have experienced a classic vagal reflex known as vasovagal syncope 3. In that situation, the vagus nerve briefly lowers heart rate and blood pressure, reducing blood flow to the brain.

More commonly, however, vagal function shows up in subtle ways. When vagal tone is low, the body may struggle to recover efficiently from stress, which can affect sleep, digestion, and cardiovascular regulation.

Vagus Nerve and The Parasympathetic Nervous System

The vagus nerve carries 75% of all parasympathetic nerve fibers in the body, making it the primary component of the parasympathetic nervous system (PNS), which is part of the autonomic nervous system (ANS) 4. The other part of the ANS is the sympathetic nervous system (SNS), which governs the fight-or-flight response and most voluntary actions. 

The PNS is responsible for maintaining the body systems you aren’t consciously controlling. This includes 4 5 6:

• Organ systems: cardiovascular, respiratory, gastrointestinal, immune, and endocrine (hormone)
  • Heart rate
  • Respiratory rate
  • Dilation/constriction of vessels
  • Digestion
  • Urination
  • Involuntary muscle movements

The primary neurotransmitter of the PNS is acetylcholine, which activates muscarinic receptors located throughout the body. The binding of acetylcholine to muscarinic receptors helps the vagus nerve/PNS carry out its primary functions 1 2 4. I bring up this level of physiological detail because choline (a B vitamin) is an important part of your diet and is also a precursor to acetylcholine.

When you eat foods rich in choline (like beef liver, eggs, meat, fish, soybeans, and nutritional yeast), you help provide your body with the raw materials it needs to support your nervous system 7. It’s especially important for vegetarians and vegans to make sure that they are getting enough choline (among other important nutrients) in their diet to support brain neural health. 

This is why diet is a fundamental component of a vagus nerve reset, and why I prioritize nutrition in my practice, especially when the above symptoms of vagus nerve dysfunction are present.

What Is a Vagus Nerve Reset?

Many studies have linked various gastrointestinal, neurologic, cardiovascular, and metabolic diseases to reduced vagal tone, leading to exploration of how stimulating the vagus nerve can improve health. Vagus nerve stimulation is also referred to as vagus nerve therapy or, more loosely, a vagus nerve reset.

The goal of a vagus nerve reset is to restore balance between the two parts of the autonomic nervous system (parasympathetic and sympathetic), thereby helping to heal symptoms of nervous system dysfunction. 

Understanding what the vagus nerve does is one thing. The more practical question is whether yours is functioning optimally.

Here’s how to tell.

Do You Need a Vagal Nerve Reset? 

The vagus nerve helps regulate digestion, heart rate, sleep, and your ability to recover from stress. When vagal tone is low, the body may have a harder time shifting into a calm, restorative state.

Signs your vagal tone may be low include: 

• Insomnia
• Migraines
• Anxiety
• Chronic pain
• Gas and bloating
• Constipation
• Sluggish digestion
• High or low blood pressure
• Elevated and/or fluctuating heart rate

Keep in mind that all of these symptoms can also be signs of various other health problems. It’s a good idea to check in with your medical provider if you are concerned about your symptoms. 

Natural Ways to Stimulate the Vagus Nerve

There is no single “factory reset” for the vagus nerve. You cannot flip a switch and instantly rebalance your nervous system.

What you can do is use specific inputs that are known to increase parasympathetic activity and improve heart rate variability. When practiced consistently, these methods strengthen vagal tone and improve your ability to recover from stress.

The encouraging part is that many of these tools are practical and accessible. Some have more direct effects on vagal tone than others, and knowing where to focus makes a difference.

Meditation and Stress Regulation

The vagus nerve is a primary regulator of your body’s stress response. When you are chronically stressed, sympathetic activity dominates. Over time, this can suppress parasympathetic activity and reduce vagal tone.

Stress management practices can help reverse that pattern 8.

Research shows that mindfulness meditation and other stress-reduction techniques are associated with improvements in heart rate variability, a widely used measure of vagal tone 9 10. Even brief sessions can increase parasympathetic activity and improve stress recovery.

Beyond formal meditation, behaviors that promote psychological safety and emotional regulation also appear to support vagal tone. These include 11:

• Building and maintaining strong social connections
• Practicing forgiveness
• Engaging in meaningful, positive interactions

Though these practices do not eliminate stress, they help improve your ability to recover from it. The ability to shift back to baseline efficiently is one of the clearest markers of healthy vagal function.

Nutrition

Proper nutrition is vital for healing the vagus nerve. Reducing your consumption of inflammatory foods like sugar, trans fats, processed foods, and alcohol can go a long way in reducing inflammation and nervous system hyperreactivity. 

A Mediterranean diet is non-restrictive, and research shows that it is linked to better vagal tone 12. It emphasizes the consumption of:

• Fresh fruits and vegetables
• Whole grains like quinoa, farro, bulgur, and brown rice
• Legumes like chickpeas, lentils, and beans
• Healthy fats, especially extra virgin olive oil
• Lean proteins such as fish (like sardines or salmon), poultry, and eggs
• Moderate amounts of dairy products like Greek yogurt and feta cheese

If a Mediterranean diet doesn’t seem to resolve your symptoms, a Paleo elimination diet can often help. It eliminates even more common inflammatory foods, like dairy, eggs, and corn. 

These dietary supplements can also support vagus nerve health 12: 

• Omega-3 fatty acids
• Vitamine B12
• Probiotics 

Breathing Exercises

Deep breathing activates the PNS, signaling your body to calm down and relax. In contrast, in the fight-or-flight response (when the sympathetic nervous system is active), short, shallow breaths are more common. By taking deep breaths, you can tell your brain to calm down and slow the body’s stress response. 

Research shows that slow, diaphragmatic breaths can improve HRT/vagal tone and feelings of relaxation 13. There are a number of different breathwork techniques out there that have been shown to improve mental and physical health, including cognition. If you are new to therapeutic breathing, you can start with the box breathing technique:

1. Breathe in through your nose for 4 seconds
2. Hold at the top of your inhale for 4 seconds
3. Exhale through your mouth for 4 seconds
4. Hold the bottom of the exhale for 4 seconds
5. Repeat as many times as desired or until you feel relaxed

Slow breathing isn’t the only breathwork that can help. One study looked at the effects of laughter on HRV (a measure of vagal tone we discuss below) and mood in patients awaiting an organ transplant (high stress). It compared the effects of simulated laughter plus stretching exercises, clapping, and 20 minutes of meditation with a control group that only had discussions about their health 14. 

The results showed that the laughter group had immediate improvement in mood and HRV. Both groups had improved long-term anxiety 14. 

Another study showed that laughter may reduce the risk of heart disease and stroke (which are linked to poor vagal tone), even after controlling for other risk factors like high cholesterol, blood pressure, and body mass index 15.

Exercise

Regular physical activity is one of the most consistent ways to improve heart rate variability and support vagal tone 16.

Systematic reviews show that aerobic exercise, resistance training, and yoga are all associated with improvements in HRV 11. There isn’t one “best” type of exercise for the vagus nerve. What matters most is consistency.

For most people, regular exercise looks like:  

• Brisk walking, cycling, or swimming
• Strength training 2–3 times per week
• Gentle practices like yoga or mobility work

If you want to support your nervous system, start with movement before looking for more specialized techniques.

Cold Exposure 

Cold water facial immersion may also be effective in improving vagal tone 11. 

Cold exposure also appears to support stress resilience and recovery. If you tolerate it well, finishing a shower with 30 to 60 seconds of cool water can be a practical starting point. 

In my experience, this is one of the simplest and most effective tools for improving stress tolerance and autonomic balance.

Massage

Because the vagus nerve runs through the neck, some manual therapies aim to stimulate nearby tissue to encourage parasympathetic activity.

A gentle vagus nerve massage around the base of the skull and along the neck may increase relaxation and improve HRV in some individuals 17. However, more aggressive techniques, such as carotid sinus massage, are medical procedures and should not be attempted without professional supervision.

Ice massage applied to the head and spine may also improve HRV compared with tap water massage or massage without water or ice 18. This is a great way to get the benefits of a massage and cold exposure. 

Electrical Vagus Nerve Stimulation

Electrical VNS (eVNS) is a more invasive method where a small, surgically implanted device is placed just under the surface of the skin (usually on the left side of the chest) to stimulate the vagus nerve. It’s FDA-approved for the treatment of epilepsy and treatment-resistant depression and is also being explored for the treatment of obesity, stroke rehabilitation, male infertility, autism spectrum disorders, migraines, tinnitus, autoimmunity, and inflammatory disorders 1 2.

This treatment is reserved for the above conditions, and its invasive nature and high cost make it a less preferred method for vagus stimulation in the general population (best stick to cold water and targeted breathing techniques). 

However, if you do think you qualify for eVNS, there are also a few potential side effects that you should know about before seeking this type of intervention. They include 2:

• Voice alteration
• Hoarseness
• Cough
• Tingling
• Difficulty breathing
• Vocal cord paralysis
• Implant site infection
• Left facial nerve paralysis
• Horner syndrome: Nervous dysfunction of the face that leads to a smaller pupil, drooping eyelid, and little or no sweating on the affected side 19.

The two forms of non-invasive electrical VNS are transcutaneous auricular vagus nerve stimulation (taVNS) and cervical transcutaneous vagus nerve stimulation (ctVNS). In taVNS, a transcutaneous electrical nerve stimulation (TENS) unit is placed on the ear to deliver electrical stimulation through the skin directly to the auricular nerve, a branch of the vagus nerve in the ear.

In ctVNS, the electrode is the same, but the placement is different. It’s placed on the neck area over the sternocleidomastoid muscle near a branch of the vagus nerve 20. We don’t quite understand why or how providing direct electrical impulses to the vagus nerve helps, but it provides a positive result for a number of patients. 

There is no standardized protocol or set of parameters that has been proven to yield the greatest therapeutic benefit for specific conditions in these treatments. While these may play a more prominent role in improving vagal tone in the future, trying low-cost, at-home methods that benefit your overall health is probably where your resources will be best spent. 

If you don’t find relief with the fundamentals, seek out a provider educated in this modality, such as a physiotherapist, physical therapist, chiropractor, neurologist, or alternative healthcare provider, who can help guide you on how to best use this less invasive form of eVNS 20. 

Using Heart Rate Variability to Measure the Vagus Nerve Activity

So, how do you know if you need to work on your vagal tone? 

Activity of the vagus nerve, also referred to as vagal tone, is measured indirectly through heart rate variability (HRV), which is the fluctuation in time intervals between heartbeats. High HRV is associated with higher vagal tone and better health and reflects the nervous system’s adaptability and resilience during stressful situations and its return to baseline afterward 21.

Although higher/optimal levels of HRV appear to be associated with health, and lower HRV is associated with lower vagal tone and worse health, there are no definitive reference ranges for normal or healthy HRV 22 23. 

What’s more important is looking at your HRV trend over time (which can be done with a smartwatch or fitness tracker) to see if it is consistently low or has frequent and/or drastic dips. This is a sign your nervous system is taxed and can benefit from a vagus nerve reset.

FAQs

How do you reset the vagus nerve naturally?

You do not “reset” the vagus nerve like flipping a switch. You can improve vagal tone by supporting your parasympathetic nervous system.

The most effective natural strategies include:

• Slow diaphragmatic breathing at about 5 to 6 breaths per minute
• Regular aerobic and resistance exercise
• Stress reduction practices such as meditation
• Eating a nutrient-dense diet, such as a Mediterranean-style pattern
• Improving gut health and reducing inflammation
• Cold exposure, such as cool water at the end of a shower

Consistency matters more than intensity. Most people benefit from starting with breathing and regular movement before trying more specialized techniques.

What are the symptoms of an irritated vagus nerve?

True structural vagus nerve injury is uncommon and usually occurs due to surgery, trauma, or serious medical conditions.

More often, people are referring to symptoms associated with low vagal tone or autonomic imbalance. These may include:

• Anxiety or difficulty relaxing
• Trouble sleeping
• Gas, bloating, or constipation
• Elevated resting heart rate
• Lightheadedness during stress
• Increased sensitivity to pain

These symptoms are non-specific and can have many causes. When they cluster together, nervous system regulation may be worth addressing.

Where is the pressure point to calm the vagus nerve?

The vagus nerve runs from the brainstem through the neck and into the chest and abdomen. Some manual therapies focus on gentle pressure near the base of the skull or along the side of the neck to encourage relaxation.

However, there is no single pressure point that reliably “calms” the vagus nerve. Techniques like slow breathing tend to have stronger evidence for improving parasympathetic activity.

More aggressive techniques, such as carotid sinus massage, are medical procedures and should only be performed under professional supervision.

How can you tell if you need a vagus nerve reset?

You may benefit from supporting vagal tone if you notice patterns such as:

• Feeling stuck in fight-or-flight mode
• Difficulty recovering from stress
• Digestive sluggishness
• Low heart rate variability trends on wearable devices
• Poor sleep despite adequate opportunity

There is no single test that confirms you “need” a vagus nerve reset. Instead, it is a practical framework for improving stress resilience and nervous system balance.

For most people, foundational strategies such as breathing, exercise, and dietary improvements are appropriate first steps.

Bottom Line

The vagus nerve plays a central role in regulating stress, digestion, heart rate, and inflammatory signaling.

For most people, improving vagal tone does not require a device or a complicated protocol. Slow breathing, consistent movement, nutrient-dense eating, and stress regulation form the foundation.

Electrical stimulation has a defined role in specific medical conditions, but lifestyle strategies are typically the safest and most practical place to begin.If you continue to struggle with stress sensitivity, digestive issues, or autonomic symptoms, working with a clinician can help you determine the right next step. We’re currently accepting new patients and would be happy to help. Book an appointment.

Dr. Michael Ruscio is a DC, natural health provider, researcher, and clinician. He serves as an Adjunct Professor at the University of Bridgeport and has published numerous papers in scientific journals as well as the book Healthy Gut, Healthy You. He also founded the Ruscio Institute of Functional Health, where he helps patients with a wide range of GI conditions and serves as the Head of Research.