How to Calm Your Nervous System: Vagus Nerve Exercises and Other Simple Daily Practices

In short:

• "Vagus nerve exercises" is a popular name for simple practices including slow breathing, humming, a longer exhale, that are linked with the body's calming branch of the nervous system.
• You can't exercise a nerve the way you exercise a muscle. What these practices can do is give your body a regular signal that it is safe to settle.
• The most useful habit is a short, daily one. Two to five minutes a day tends to matter more than one long session a week.
• If you feel stuck on high alert despite doing all of this, that is worth looking at more closely. Individual results vary.

You lie down at night and your mind keeps running. Your shoulders sit somewhere near your ears. A small thing such as an email, a slow driver, etc. sets off a reaction that feels far bigger than the moment. People describe it in different ways: wired, on edge, unable to switch off.

When people search for how to calm the nervous system, this is usually what they mean. The good news is that there are simple, free things you can practise. Here is what they are, what the evidence says, and where their limits are.

What does "calming your nervous system" actually mean?

Your autonomic nervous system runs the things you don't think about: heart rate, breathing, digestion. It has two main branches. The sympathetic branch gets you ready to act, which is the "fight-or-flight" response. The parasympathetic branch helps you rest, digest and recover.

Both are normal and both are useful. Trouble starts when the "ready to act" side stays switched on for weeks or months, long after the stressful moment has passed. In my practice, that is one of the most common patterns I see in adults who feel tired but can't rest.

"Calming your nervous system" means giving the rest-and-recover side more of a chance to take over. You can read more about what happens when the body stays in high gear in Nervous System Dysregulation: Stuck in Fight-or-Flight.

What is the vagus nerve, and can you really "exercise" it?

The vagus nerve is the longest nerve in the autonomic nervous system. It runs from the brainstem down through the neck to the heart, lungs and gut. It carries a large share of the rest-and-recover signals.

Researchers often estimate how active it is by measuring heart rate variability (HRV), which are the small, natural changes in time between heartbeats. Higher HRV at rest is generally linked with a more flexible stress response.

Here is the honest part. A nerve is not a muscle, and there is no exercise that makes it bigger or stronger. When people talk about "vagus nerve exercises," they mean practices that tend to shift the body toward its calmer state while you do them. Done often, they can make that shift feel more familiar and easier to reach.

Seven simple practices to try

None of these need equipment. Start with one or two that feel comfortable, not all seven.

1. Slow breathing with a longer exhale

Breathe in through your nose for a count of four. Breathe out slowly through your nose or pursed lips for a count of six to eight. Repeat for two to five minutes.

A longer exhale is one of the most studied ways to shift toward the calmer side of the nervous system. A 2018 systematic review in Frontiers in Human Neuroscience found slow breathing, around six breaths a minute, was linked with higher HRV and with people reporting feeling calmer and more relaxed.

2. The physiological sigh

Take a normal breath in through your nose, then a second, shorter "top-up" breath on top of it. Then let it all out slowly through your mouth. One to three rounds is often enough to take the edge off a stressful moment.

In a 2023 study in Cell Reports Medicine, five minutes a day of this "cyclic sighing" for a month was linked with better mood and lower breathing rate at rest, compared with mindfulness meditation. We have a short guided version in our video library: Physiological Sigh Breathing for Stress.

3. Humming

Humming makes you breathe out slowly, and it creates a gentle vibration around the throat, where the vagus nerve passes. It is also easy to do in the car or the shower. Try a steady hum on each exhale for one to two minutes.

A yoga version of this is called bhramari, or "humming bee breath." You can follow along in our Humming Bee Breath video.

4. Cold water on the face

Splashing cold water on your face, or holding a cool cloth over your forehead and cheeks for 15–30 seconds, triggers a reflex that slows the heart. It can be a quick reset when you feel overwhelmed. If you have a heart condition, ask your medical provider before trying cold exposure.

5. Gentle movement and a walk outside

Walking at an easy pace, especially outdoors, is one of the simplest ways to let stress energy discharge. It doesn't have to be a workout. Ten minutes after lunch or after a hard meeting counts.

6. A regular wind-down before bed

Your nervous system responds to rhythm. Dim lights, a screen-free half hour and the same bedtime each night all tell the body that the day is ending. Our post on improving sleep quality goes through this in more detail.

7. Connection

Calm, face-to-face time with people you trust is one of the strongest signals of safety the nervous system receives. A phone call with a friend or a meal with family is not a luxury here. It is part of the picture.

How do you know it's working?

You don't need a device. Small signs are usually the first ones people notice:

• Falling asleep a little more easily, or getting back to sleep faster after waking.
• Noticing tension in your jaw or shoulders sooner, and being able to let it go.
• Recovering faster after a stressful moment, even if the moment itself still feels stressful.
• Breathing that feels lower and slower without you trying.

Give a new habit at least two to three weeks before judging it. If you like data, some wearables show a resting HRV trend. Treat it as a rough guide, not a score to chase.

When deep breathing makes things worse

Some people feel more anxious, not less, when they focus on their breath. This is more common than you might think, especially after a long period of stress or a difficult experience.

If that happens, keep your eyes open, breathe at a natural pace and focus on the longer exhale rather than a big inhale. Or switch to humming or a walk instead. Our video When Deep Breathing Makes Anxiety Worse has more tips. If breathing work brings up strong emotions, it is worth talking it through with a licensed mental health professional.

When to look deeper

Daily practices are a foundation, not a full plan. If you are doing these consistently and still feel stuck on high alert, it may help to measure what is going on rather than guess.

At Secoya Health in Woodbury, MN, we start with a conversation about your history, sleep, stress and what you have already tried. From there, these are some of the options we may discuss:

• A qEEG brain map. A qEEG brain map records your brain's electrical activity and compares it with reference data, so we can see your own pattern.
• Neurofeedback. At Secoya, neurofeedback is QEEG-guided brain training, used as one part of a broader nervous-system plan rather than a standalone answer. It starts with a brain map, so what we train is based on your data instead of a template.
• QNRT. A hands-on protocol aimed at nervous-system responses rather than at conversation or chemistry. A different angle on the same problem, not a replacement for either. I am the only Certified Master QNRT Practitioner in Minnesota, one of just 4 in the world. You can read more in QNRT for Stress and Fight-or-Flight.

A note on the evidence for brain training, in the same words we use on our neurofeedback page: It is genuinely mixed, and we would rather say so than oversell it. Brain training has a long clinical history and many participants report meaningful change, but the stronger blinded trials, including a large review pooling dozens of randomized studies, have not demonstrated a clear benefit once expectation effects are accounted for. That is why we treat it as one component of a plan that trains the brain to maintain a more calm state, followed immediately by a QNRT brain reset, which decreases the emotional charge and increases your stress resilience. We do both of these alongside sleep, stress physiology and lab work, where we track your own before-and-after data instead of leaning on the literature to make promises. Individual results vary.

None of this replaces medical or mental health care. If you have chest pain, fainting, panic that will not settle, or thoughts of harming yourself, contact your medical provider or call or text 988 right away.

Frequently asked questions

How long does it take to calm your nervous system?

A few slow breaths can take the edge off a stressful moment within a minute or two. Building a calmer baseline usually takes weeks of regular practice, and it varies from person to person.

What is the fastest way to calm down in the moment?

For many people, one to three physiological sighs or a minute of slow breathing with a long exhale works quickly. Cold water on the face is another fast option.

Are vagus nerve exercises safe?

Gentle breathing, humming and walking are low-risk for most adults. Cold exposure and breath holds are not right for everyone. If you are pregnant or have a heart, lung or seizure condition, check with your medical provider first.

Can I do too much?

Yes, if it turns into another task to get right. Short, regular and comfortable beats long and forced.

Start small this week

Pick one practice from the list. Do it for two minutes, at the same time each day, for the next seven days. Notice what changes.

If you would like to understand your own stress pattern in more depth, you can book a visit with Secoya Health in Woodbury, MN. We will start by listening, and look at what's behind how you feel before recommending anything.

Sources

• Zaccaro A, Piarulli A, Laurino M, et al. How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience. 2018;12:353.
• Balban MY, Neri E, Kogon MM, et al. Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine. 2023;4(1):100895.
• Laborde S, Mosley E, Thayer JF. Heart rate variability and cardiac vagal tone in psychophysiological research: recommendations for experiment planning, data analysis, and data reporting. Frontiers in Psychology. 2017;8:213.