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The Wellness Workshop · Breath
Nervous System Regulation
The Exhale · The Vagus Nerve · The Hum · Stillness
Breathing is the only one of your body's automatic systems you can also take over by hand. That single fact makes it the most direct door into your nervous system — open every moment of your life, and free.
You can change your nervous-system state with something you are already doing all day. Slow the breath, lengthen the exhale, and within seconds the body begins shifting from fight-or-flight toward rest and repair.
The Science
Why the Breath Works — The Mechanism
Most of your nervous system runs automatically. Your heart beats, your digestion works and your stress response switches on without you having to think about any of it.
Breathing is different. It happens automatically, but you can also take control of it whenever you want. That gives you a direct way to influence what your nervous system is doing.
Slow your breathing and lengthen your exhale, and your body begins shifting away from the alert, fight-or-flight state and toward the calmer parasympathetic state — the side responsible for rest, digestion and recovery.
One of the main pathways involved is the vagus nerve, the long communication line running between your brain and organs including your heart, lungs and gut.
There is another piece most people never learn: carbon dioxide is not simply a waste gas. You need enough of it to help oxygen move from your blood into your tissues. When you are stressed and over-breathe — too fast, too deeply or through your mouth — CO₂ drops. Slower, quieter breathing helps restore that balance.
James Nestor's Breath and Patrick McKeown's The Oxygen Advantage both return to the same idea: better breathing is not about taking in more air. It is about breathing more efficiently, tolerating CO₂ better and using the nose as the body's natural breathing route.
Why Most People Get It Wrong
Under stress, the instinct is usually to take more air in — bigger breaths, faster. But over-breathing can drive CO₂ down and make it harder for oxygen to move where it is needed. The goal is not the biggest breath possible. It is to breathe slowly enough that your body gets the message: we are safe now.
The Chemistry of Breathwork
Part of what makes breathwork feel so different from simply trying to relax is that breathing changes both physiology and brain chemistry. Some of those changes have been measured directly; others help explain why breathwork can affect mood, focus, connection and pain so quickly.
Serotonin
Mood · Calm · Emotional stability
In a small human study of slow meditative breathing, serotonin levels rose alongside improved mood and changes in prefrontal brain activity. Serotonin is deeply involved in emotional steadiness, which gives a biochemical counterpart to that calmer feeling many people notice after a session.
Dopamine
Motivation · Focus · Reward
Dopamine sits at the centre of motivation, focus and reward. Breathwork gives those systems something immediate to learn from: change the breath, feel the state change. That sense of I can change how I feel is part of why the practice can become so reinforcing.
Oxytocin
Connection · Trust · Bonding
Oxytocin is one of the hormones most closely tied to bonding, trust and social connection. Shared rhythm, voice, eye contact and breathing together create powerful social cues — which helps explain why a room breathing or humming in sync can feel completely different from practising alone.
Endorphins
Natural pain relief · Euphoria
More dynamic, high-ventilation breathing can engage the body's own opioid system, including beta-endorphin — part of the same chemical family involved in exercise euphoria and natural pain relief. That light, open feeling after a powerful session has a physiological component too.
Five minutes. That is what I love about this research. Five minutes of breathing can measurably change breathing rate and heart-rate variability. And something as primitive as humming through your nose can drive nasal nitric oxide dramatically higher. You are carrying this equipment around with you already.
5m
Daily cyclic sighing improved mood and lowered breathing rate
5m
Slow breathing can measurably increase heart rate variability
15×
Nitric oxide increase during nasal humming
Core Techniques
Four Practices — Tap Each to Go Deeper
Each works through a slightly different mechanism. All free. All effective within seconds. No equipment required.
IThe Physiological SighDouble inhale · Long slow exhale
A double inhale through the nose — a full breath, then a short top-up on top of it — helps reopen tiny air sacs that can collapse as breathing becomes shallow. The long exhale then slows the rhythm back down. In a Stanford randomized trial, five minutes a day of cyclic sighing improved mood and reduced resting breathing rate more than an equal period of mindfulness meditation over one month. When you feel overwhelmed in the middle of something, one or two cycles is an easy place to start.
◈ Balban et al. · Cell Reports Medicine
IIExtended Exhale BreathingInhale 4 · Exhale 6–8
A longer exhale is one of the easiest ways to slow the whole breathing rhythm and make the downshift feel intuitive. Slow-paced breathing measurably changes heart rate variability — the tiny differences in spacing between heartbeats that reflect how flexibly the nervous system is responding. Five minutes is enough to produce a measurable shift. The power is in slowing the breath; the extended exhale is a simple lever you can use anywhere.
◈ Slow-paced breathing · HRV research
IIIBox BreathingInhale 4 · Hold 4 · Exhale 4 · Hold 4
Box breathing gives a racing mind a simple pattern to follow: inhale, hold, exhale, hold, all for the same count. The slower rhythm helps bring physiological arousal down, while the counting gives the deliberate part of the brain something concrete to do instead of chasing every thought. Five rounds is usually enough to notice the difference.
◈ Four equal phases · one repeating rhythm
IVNasal BreathingAlways in · Always out · Through the nose
The nose filters, warms and humidifies the air before it reaches the lungs. The nose and sinuses also produce nitric oxide, a signalling molecule involved in blood flow, airway function and local defence. Mouth breathing bypasses much of that system. Chronic mouth breathing is also linked with poorer sleep, and during childhood it is associated with changes in dental and facial development. The practical baseline is simple: when you can breathe comfortably through your nose, use it.
Follow the circle. It grows as you inhale and empties as you exhale — the same rhythm as the orb at the top of this page. Two minutes is enough to feel the shift; five minutes is the practice.
Press start
0 breaths
No script needed to practise: inhale through the nose for a count of four, exhale for a count of six. Repeat for five minutes. That is the entire technique.
◈ Extended exhale pattern — referenced in James Nestor, Breath (2020)
For New Meditators · NeuroPulse Pro
Stepping the brain down to where the practice lives
Breathwork needs nothing but you, and that is one of the reasons I love it. The frustration for new meditators is often not the practice itself, but wondering whether anything is actually happening or whether they have reached the state they are aiming for. The NeuroPulse Pro approaches that from another direction through brainwave entrainment. It pulses at theta and delta rhythms associated with deep meditation and deep sleep, giving the brain a steady external cue while you breathe or sit. The breath remains the practice. NeuroPulse is simply another tool for helping the nervous system settle into deeper states more easily.
You Can Literally Hum Your Physiology in a Different Direction
The vagus nerve is the longest cranial nerve in the body, running from the brainstem down through the neck and into the chest and abdomen. It carries signals between the brain and organs including the heart, lungs and digestive tract. It is one of the main pathways of the parasympathetic nervous system — the side associated with rest, digestion and recovery.
The Vagus Nerve — the Body's Calm-Down Wiring
Why Humming Activates It
Humming combines two things at once: a long controlled exhale and vibration through the larynx. Human studies show that humming breathing can increase heart rate variability measures associated with parasympathetic activity. It is a simple way to use breath and sound together — and you can feel the vibration immediately.
The Nitric Oxide Effect
Research from the Karolinska Institute found that humming increased nasal nitric oxide about 15-fold compared with a quiet nasal exhale. The reason is beautifully mechanical: the vibration dramatically increases air exchange between the sinuses and nasal cavity. Nitric oxide also plays important roles in airway defence and vascular signalling.
Humming is the easiest way in, but it is not the only one. Anything that vibrates the throat, or that works the muscles wired into the same nerve, reaches it — which is why several traditions and one very unglamorous kitchen habit all end up in the same place.
Hum
Lips closed, a soft steady hmmmm, five minutes. Feel it in the chest, throat and face — that vibration is the part that matters. If you only do one of these, do this one.
Tone or chant
One low vowel held for a whole exhale — Om is the traditional choice, and any sustained note works. Longer and lower than a hum, so the vibration carries further down the chest.
Gargle
Thirty to sixty seconds of water at the back of the throat, a few times a day. The muscles it works are wired into the same nerve. Free, faintly ridiculous, and it counts.
Eyes, far to near
Look at something across the room for five seconds, then at your hand for five, and keep alternating for a minute or two. Inhale on the far object, exhale on the near one.
If you want two rather than four: hum daily, and use the eye exercise when you are stuck at a desk and cannot make a sound. The rest are useful, not essential.
Ancient Practice · Modern Mechanism
Long before anyone could measure heart rate variability or nitric oxide, traditions were already using chanting, humming, mantra and sustained tone to shift state. People knew what these practices did because they could feel the effect. Now we can begin to see some of the physiology underneath it.
The Longer Practice
When the Breath Becomes the Practice
Everything so far has used the breath as a switch — a minute here, five there, to change a state that had already gone wrong. Held for longer, it does something different. It becomes the thing your attention keeps coming back to, and the coming back is where the value is.
Your attention will wander within seconds of settling on the breath. That is not a sign you are bad at this. Each time you notice you have drifted and return, you are practising the one skill that transfers: catching your own mind mid-pattern and choosing where to put it next. The Mindset module in this workshop makes the same case from the other direction — this is what it looks like with the breath as the anchor.
If plain attention practice reads as dry, there is a version that sits closer to everything above. Instead of following the breath at the nose, you put your attention in the middle of your chest and breathe evenly through it, holding one thing you feel genuinely grateful for. In a month-long HeartMath study, people practising heart-focused emotional self-management techniques showed lower cortisol, higher DHEA/DHEAS and more coherent heart-rate patterns during the practice. The combination is simple: steady breath, focused attention and a feeling the body recognises as warm rather than threatening.
1
To Begin
Settle, and drop your attention to your chest
Sitting or lying down, somewhere you will not be interrupted. Eyes closed. Imagine the breath moving in and out through the middle of your chest rather than your nose.
2
A Few Minutes
Five in, five out
Even counts this time, not the long exhale — the point is a steady rhythm rather than a shift into calm. Let it smooth out on its own.
3
Once the Rhythm Holds
Bring one thing to mind
Someone, a memory, a place. One, held clearly, rather than a list worked through. You are after the feeling of it, not the thought of it.
4
10–15 Minutes
Stay with the warmth
When your attention goes — and it will, repeatedly — come back to the chest, the count, and the thing you were holding, in that order. Returning is the practice.
Free · Wandering is expected
Five or ten minutes is a real practice. Nothing here needs an hour, a cushion, or a tradition to belong to — and the day you sit down not wanting to is the day it counts for most.
Where It Begins · The First Teacher
My studies started young, sitting beside my grandmother.
Carol K. Anthony wrote books on meditation, self-healing and the I Ching, and she raised me. From about the age of six I sat next to her while she taught me visualisation, meditation, and how to work with my mind. Her view was that health was never only physical — that it was the balance of energy, emotion and thought, and that the mind had far more say in the body than most people were prepared to grant it.
That became the lens I carried into everything that came later.
Long before I knew the language of nervous-system regulation, neuroplasticity or the vagus nerve, I understood that changing your inner state could change how your body felt. Over the years that led me deeper into meditation, breathwork, energy work and other mind-body practices — not as abstract ideas, but as tools I used in my own life.
Breathwork eventually became one of my favourites because it gives you something immediate to work with. You can feel the shift. You can use it when you are stressed, overwhelmed, emotionally stuck, or simply unable to quiet your mind. And in longer breathwork journeys, I found that the practice could take me much deeper — into the kind of stillness and emotional release that first made me understand why people have worked with breath for thousands of years.
My grandmother’s influence came full circle much later, when her memory began to decline. Watching someone with such an extraordinary mind begin to lose access to it changed the direction of my work. It pushed me further into brain health and eventually inspired the development of the NeuroWrap.
The Daily Practice
The Five-Minute Wind-Down
Joe Dispenza often describes the space between thoughts as the place where we can interrupt habitual patterns and become available to something new. I like that framing because it captures what this short sequence is designed to do at the end of the day: quiet the noise enough to create a little space. Before bed is the natural slot. It uses everything this module has taught, and it takes five minutes.
1
To Begin
Find a comfortable position
Seated or lying down, eyes closed. Keep the light low — it tells your circadian rhythm, or body clock, that the day is closing. Let the room go quiet.
2
Three Rounds
Extended exhale
Inhale for four, exhale for six. Let your own rhythm settle. There is no rush. This is the practice.
3
20–30 Seconds
One sustained hum
On the exhale. Feel the vibration in your chest, throat and skull. That resonance is real mechanical vibration moving through the spaces of the body, while the slow exhale and humming rhythm work on the nervous system at the same time.
4
As Long As You Like
Silence
Nothing to count and nothing to control. Sit in the quiet for as long as it feels useful.
5
When You're Ready
Return
Open your eyes when you are ready and let your breathing return to its natural rhythm.
Take This Home
Three Things to Remember
The exhale is the lever
Slow the whole breath first. When you want to downshift, making the exhale a little longer is one of the easiest levers to use. Five minutes of slow breathing is enough to measurably change heart rate variability and bring physiological arousal down.
Nasal breathing is the baseline
In through the nose, out through the nose — as often as it feels comfortable. The nose is not just a passage. It filters, warms and humidifies the air, while the nose and sinuses produce nitric oxide that plays a role in airway function and blood flow.
Five minutes changes the day
Five minutes is enough to change physiology in a single session. Practised daily, those minutes add up: in a randomized trial, five minutes of cyclic sighing each day improved mood and reduced resting breathing rate over one month. The bar for doing something useful is very low.
Your breath has been changing your nervous system every minute of your life. The difference now is that you can take the wheel.
Go Deeper · Resources Worth Your Time
A track to start with. Teachers worth knowing.
Featured Track · Vocal Toning & Breathwork
Start here — free on YouTube
This vocal toning and breathwork journey is a beautiful entry point for anyone who wants to feel what this practice actually does before committing to a longer programme. It combines extended exhale work with humming and toning, so breath, vibration and attention are all working together. The soundtrack is tuned to A = 432 Hz rather than the modern standard of A = 440 Hz. I experience that tuning as softer and more settled; rather than taking that on faith, notice whether your own body registers a difference. Put headphones on, lie down, and give it your full attention.
Kaya Leigh blends breathwork with vocal toning, sound healing, and somatic practice into something genuinely distinctive. Her Sacred Breath Method is one of the more musically and emotionally rich approaches in the space — worth your time if the humming section above landed with you.
Nestor spent years on the science and the history of how we breathe, and on why modern humans have largely forgotten how to do it well. His book is the most readable way into all of this. If you read one thing after this module, read that.
Eva Kaczor founded Psychedelic Breath — dynamic breathwork set to electronic music, built to create visionary states and move people from pain to purpose. One of the most immersive things happening in breathwork now. Online sessions, teacher trainings, and an app.
