Your breath is a switch you can reach: breathing for a calmer you

Most of what your nervous system does happens without asking you. Your heart rate, blood pressure, digestion and stress hormones all adjust on their own, moment by moment. You cannot decide to lower your heart rate the way you decide to lift your hand.

Breathing is the exception. It runs automatically all day, but you can also take it over whenever you choose. That makes it a rare doorway into the automatic part of your nervous system, a switch you can reach at any time, in any place, with nothing to buy and nothing to carry.

This article explains why the breath has that effect, how to tell which way your breathing is pushing you, and three patterns you can practice.

Why breathing changes how you feel

Your autonomic nervous system has two main branches. The sympathetic branch prepares you for action: faster heart, quicker breath, more alertness. The parasympathetic branch, carried largely by the vagus nerve, supports rest, digestion and recovery. Both are always active, and their balance shifts through the day.

Breathing is tied directly to that balance. When you breathe in, the heart speeds up slightly. When you breathe out, the vagus nerve applies a gentle brake and the heart slows. This rise and fall is called respiratory sinus arrhythmia, and in a healthy, relaxed person it is easy to measure.

That gives you a practical rule: breathing in leans toward activation, and breathing out leans toward calm. Making the exhale longer and the whole breath slower shifts the balance toward the parasympathetic side.

A systematic review published in Frontiers in Human Neuroscience looked at studies of slow breathing, under ten breaths a minute. Breathing around six breaths a minute was consistently linked with higher heart rate variability, a marker of a flexible, responsive nervous system, and with people reporting more relaxation and comfort and less anxiety and anger.

How stress changes the way you breathe

Under stress, breathing tends to become faster, shallower and higher in the chest. Many people also hold their breath without realizing it, especially when concentrating at a screen. Some breathe more than the body needs, which lowers carbon dioxide in the blood and can bring lightheadedness, tingling in the fingers or a feeling of not getting a full breath.

These patterns feed back into the brain as signals that something is wrong, so a stressed breath can keep a stressed state going. The good news is that the feedback works in the other direction too.

You might take a moment right now to notice your own breath without changing it. Is it high in the chest or lower in the belly? Through the nose or the mouth? Is there a pause after you exhale, or do you start the next breath right away?

Three patterns to practice

These are simple, well studied patterns. Each takes only a few minutes. Practice them when you are reasonably calm first, so they are familiar when you need them.

1. The double inhale sigh, for a fast reset

This is the pattern your body uses on its own when you sigh deeply after crying or a long day.

1. Breathe in through your nose until your lungs feel full.
2. Take a second, shorter breath in through the nose on top of the first, to fill the lungs a little more.
3. Breathe out slowly and fully through your mouth, until the air is gone.
4. Repeat two or three times, or continue for up to five minutes.

In a study published in Cell Reports Medicine, people who practiced this pattern, called cyclic sighing, for five minutes a day for a month reported greater improvement in mood than a group practicing mindfulness meditation, and they showed a greater drop in breathing rate at rest. The effect grew with the number of days people practiced.

2. Slow breathing, for steady calm

This pattern brings your breathing close to six breaths a minute, the range linked with the strongest effects in the research.

• Breathe in gently through your nose for a count of four.
• Breathe out slowly through your nose or pursed lips for a count of six.
• Continue for five to ten minutes.

If four and six feel like a strain, start with three in and four out, and lengthen over a week or two. The breath should feel slow and easy, never forced.

3. Low breathing, for retraining the habit

This one is about where the breath goes.

• Sit or lie comfortably with one hand on your chest and one on your belly.
• Breathe in through your nose so that the hand on your belly rises while the hand on your chest stays fairly still.
• Let the exhale happen on its own, slowly.
• Practice for a few minutes once or twice a day.

This trains the diaphragm, the main breathing muscle, to do more of the work and the neck and shoulder muscles to do less. Over time, low and slow tends to become your default.

A word about the nose. Breathing through your nose warms, moistens and filters the air, and because the nasal passages are narrower than the mouth, nose breathing naturally slows the breath down. Unless a cold or a blocked nose gets in the way, nasal breathing is a good everyday default, during practice and the rest of the day. If you notice you often breathe through your mouth during the day or wake with a dry mouth, it is worth mentioning to your doctor.

You cannot argue your nervous system out of alarm. You can breathe it there, one long exhale at a time.

Matt DeWild, RN

Making it part of your day

A breathing practice works best when it is tied to moments you already have. You might try:

• Five minutes of slow breathing at a set time each day, such as after your morning coffee or before you open your laptop.
• A double inhale sigh before a hard conversation, a presentation or a phone call you are dreading.
• One minute of slow breathing at transitions: in the parked car before you walk into work, or before you walk into the house at the end of the day.
• A quick check while you work: are you holding your breath? If so, let it out slowly.

The effect of a single practice is real but short. The larger benefit comes from repetition. Daily practice gives your nervous system regular experience of shifting out of alarm, and over weeks many people find they come down from stress faster on their own.

A few cautions

Breathing practice is gentle, but a few points matter:

• If you feel dizzy, lightheaded or tingly, you are probably breathing too deeply or too fast. Stop, let your breathing return to normal, and next time breathe more gently.
• For some people, especially those with a history of panic or trauma, focusing on the breath can at first feel unsettling. It can help to keep your eyes open, count out loud, or rest your attention on your feet instead of your breath. Go slowly.
• If you have a lung or heart condition, or are pregnant, ask your doctor which patterns suit you.
• New shortness of breath, chest pain, or breathlessness at rest or with little effort needs medical attention. Breathing practice is for calming the nervous system, not for those symptoms.

How we help at IFH

The first of IFH’s principles is Regulate: help your nervous system move out of constant alarm, so your body feels safe enough to rest, heal and change. Breathing is one of the simplest tools for that, and one you can use anywhere.

Matt’s Integrated Functional Neurology work is designed to help your nervous system regulate and your brain work together more smoothly. If stress has been running high for a long while, the free High Performer Burnout Check in our client portal is a good place to see where you stand. Matt is glad to work alongside your doctor and the rest of your care.

Sources

• Zaccaro A, et al. How breath control can change your life: a systematic review on psychophysiological correlates of slow breathing. Frontiers in Human Neuroscience, 2018
• Balban MY, et al. Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 2023