Nervous System Regulation: What It Means And How To Train It
Nervous system regulation: the short answer
Nervous system regulation is your body’s ability to speed up when it needs to and slow down again afterwards. It is not about being calm all day. A regulated body gets worked up by a deadline, then settles once it is over. A body that is not regulated stays stuck on high, or runs flat. You can train it. The simplest tools are a long, slow out-breath, long rests over a bolster, and a class that works hard first and then rests. Here is the article in short form:
- Regulation means moving up and coming back down, not staying calm.
- Your nervous system has an accelerator and a brake.
- The brake is pressed by a long, slow out-breath.
- Heart rate variability is the best sign of how flexible you are.
- Supported rest and a long out-breath are the core exercises.
- Being with other people helps the brake work.
- In Darwin, learn it in a gentle class or online.
Last updated: 25 October 2026.
A quick word on Iyengar yoga. Iyengar yoga is the style developed by Mr BKS Iyengar. In the 20th century he did more than anyone to set down traditional Indian yoga, through his books and his teaching, and he pioneered the use of props. It is the style we teach at Flametree, in Darwin and live online.
Resting supported over a bolster. The body is held, so the brake can work.
What is nervous system regulation?
It is the skill of changing gear. Your nervous system runs on automatic. It has an accelerator, for action and alertness, and a brake, for rest and repair. Regulation means you can use both, and move smoothly between them. Eddie Stern, an American yoga teacher, explains the brake in his book One Simple Thing. A resting heart left to itself would beat about 90 to 100 times a minute. The vagus nerve (the long nerve from the brain to the heart, lungs and gut) holds it back to about 60 to 75. He calls this the vagal brake.
Think of driving a car. You need the accelerator to get up a hill, and the brake to come down again. A car with a jammed accelerator is not strong. It is out of control. Our guide on how to calm your nervous system explains the two sides in more detail and what yoga does about them. This page is about what regulation means and how you train it.
Each breath in speeds the heart a little. Each breath out slows it. A long out-breath gives the brake longer to work.
Is nervous system regulation the same as relaxation?
No, and the difference matters. Relaxation is one state, at one moment. Regulation is the whole range, and the ability to come back from it. If you are never alert, you are not regulated, you are flat. If you can never settle, you are not regulated either. You are stuck.
That is why a good yoga class does not start with rest. Standing poses use up the energy first, and then the forward bends and supported poses bring you down. You leave calmer than you came in. The class itself is a practice at going up and coming back.
The shape of an Iyengar class. Active first, then quiet. You leave calmer than you came in.
How do you know if your nervous system is flexible?
Researchers look at heart rate variability, which is how much the time between heartbeats changes. The heart speeds up a little as you breathe in and slows as you breathe out. A heart that changes flexibly is a sign the brake is working well. Long stress tends to make the heart rate rigid.
It is the best measured sign we have. A 2022 review of 223 studies found that slow breathing raises it during practice, straight after, and after weeks of practice (Laborde and colleagues, Neuroscience and Biobehavioral Reviews). And a 2017 review of 42 trials found that practices with yoga poses were linked with lower evening and waking cortisol (a stress hormone), lower daytime blood pressure and a slower resting heart rate (Pascoe and colleagues, Psychoneuroendocrinology). The authors wrote that this was associated with improved regulation of the stress systems. The trials differed a lot, so this is a good sign, not a promise.
What are nervous system regulation exercises?
Four simple ones. We teach all of them in class. For six more practices, see our vagus nerve exercises page.
- A long, slow out-breath. Breathe in through the nose for a count of 4. Breathe out for 6 or 8. Do not strain or hold. Two minutes is enough to start.
- Supported rest. Lie back over a bolster, with a blanket under the head and the arms out to the side. Let the whole back be held. Stay 5 to 10 minutes and let each out-breath run long.
- A forward bend with the head held. Sit and fold forward over a bolster on a chair or table, with the forehead resting. The body has nothing to do, so it can let go.
- Hum on the out-breath. Breathe in, then hum softly as you breathe out, with the lips lightly closed. It is an old pranayama (breath practice) called Bhramari, and it lengthens the out-breath without effort.
Supported rest over a bolster with an eye cover. Nothing to do but breathe out.
Does breathwork help regulate the nervous system?
Yes, and it is the best tested of all the tools. A 2018 review from the University of Pisa looked at 15 studies of slow breathing (fewer than 10 breaths a minute). It raised heart rate variability. People felt more comfortable and relaxed, and less anxious, angry and confused (Zaccaro and colleagues, Frontiers in Human Neuroscience).
A seated breathing practice. Sit on a bolster, lower the eyes and make the out-breath long.
Then in 2023, Stanford researchers compared three kinds of breathing with mindfulness meditation, five minutes a day for a month (Balban and colleagues, Cell Reports Medicine). The breathing pattern with long out-breaths, called cyclic sighing, lifted mood more than meditation did. It also lowered the breathing rate more. Cyclic sighing is two in-breaths through the nose, one straight after the other, then one long, slow out-breath. It is a lot like the viloma (staircase breathing) we teach.
One slow breath. The out-breath is when the vagus nerve slows the heart.
Does being with other people help?
It seems to. In a 2013 trial at the University of North Carolina, adults were put by chance into a six-week loving-kindness meditation course (quietly wishing yourself and others well) or onto a waiting list (Kok and colleagues, Psychological Science). The meditators felt more positive emotions and more connected to other people, and their vagal tone, a measure of how well the brake works, rose. The researchers described an upward spiral: warmth, connection and a steadier heart rhythm feed each other. It was a modest-sized study.
The way one calm nervous system settles another is called co-regulation. It is part of why a class feels different from the same practice alone in the lounge room.
Get the free ebook Cutting Stress With Yoga. New to Flametree, or away for 3 months or more? You get 2 free classes + 2 ebooks, only available via this offer. Already coming to class? You can still get the book.
Where can I learn nervous system regulation in Darwin?
For nervous system regulation in Darwin, come to a gentle or restorative class at Flametree’s Woolner studio or join live online from anywhere in Australia. Every class uses bolsters, chairs, belts and blankets, and the teacher adjusts each pose to your body. You do not need to be flexible to start. Our guide to yoga for stress management shows what a class looks like.
Frequently asked questions
What is nervous system regulation?
It is your body’s ability to speed up when a job needs it, and slow down again when the job is done. A well-regulated nervous system moves between alert and calm with ease, and returns to rest after stress.
Is nervous system regulation the same as relaxation?
No. Relaxation is one state. Regulation is the ability to move between states and to come back. You can be fully alert, even excited, and still be well regulated if you recover afterwards.
What are some nervous system regulation exercises?
A long, slow out-breath, resting supported over a bolster, a forward bend with the head held, humming on the out-breath, and a class that works first and then rests. Do them a little each day.
Does breathwork help with nervous system regulation?
Yes, slow breathing is the best tested tool. A 2022 review of 223 studies found it raises heart rate variability, and a 2023 Stanford trial found five minutes a day of breathing with long out-breaths lifted mood more than mindfulness.
Can yoga regulate the nervous system?
Research points that way. A 2017 review of 42 trials found yoga with poses was linked with lower cortisol, lower daytime blood pressure and a slower resting heart rate, which the authors called improved regulation.
What is heart rate variability?
It is how much the time between heartbeats changes. A healthy heart speeds up a little as you breathe in and slows as you breathe out. Long stress tends to make the heart rate more rigid.
Does being with other people help regulate the nervous system?
It can. In a University of North Carolina trial, people who practised loving-kindness meditation felt more connected to others, and their vagal tone, a measure of the brake, rose. A shared class is part of the reason it feels different from practising alone.
Where can I learn nervous system regulation in Darwin?
Flametree Yoga Studio teaches Iyengar yoga at Woolner in Darwin and live online. Gentle and restorative classes use bolsters, chairs and blankets, and the teacher adjusts each pose to your body.
Where to next
- New to yoga, or coming back? Start with our half price 10 class pass with 2 classes free, in Darwin or live online.
- For a workplace, team or group: book private yoga classes for groups, online, at a Flametree studio or at your venue.
- Want to see class times first? Look at the beginner timetable.
Flametree Yoga Studio, Darwin and live online. This article is general information, not medical advice.
Sources: Laborde S and colleagues, Effects of voluntary slow breathing on heart rate and heart rate variability: a systematic review and a meta-analysis, Neuroscience and Biobehavioral Reviews, 2022; Pascoe MC and colleagues, Yoga, mindfulness-based stress reduction and stress-related physiological measures: a meta-analysis, Psychoneuroendocrinology, 2017; Zaccaro A and colleagues, How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing, Frontiers in Human Neuroscience, 2018; Balban MY and colleagues, Brief structured respiration practices enhance mood and reduce physiological arousal, Cell Reports Medicine, 2023; Kok BE and colleagues, How positive emotions build physical health, Psychological Science, 2013; Stern E, One Simple Thing, 2019; Cutting Stress With Yoga ebook.
