17 Benefits of Breathwork: Science, Nervous System & Lived Experience

Breathwork can support nervous system regulation, emotional processing, focus, resilience and a deeper connection with yourself.

But there is an important distinction often missing from conversations about Breathwork:

Not all Breathwork does the same thing.

Slow, regulated breathing may settle physiological arousal and support parasympathetic activity. More activating practices — including conscious connected or high-ventilation Breathwork — can initially increase arousal and create strong physical, emotional or altered-state experiences before moving toward integration.

So the benefits depend on the technique, intention, context and individual nervous system.

And perhaps that is also what makes the breath so fascinating.

It can calm us.

It can activate us.

It can change what we notice.

And sometimes, it can take us beyond the thinking mind into something much more embodied.

Research into Breathwork is still developing, but randomized trials and meta-analyses suggest benefits for stress, anxiety and mood, while newer research is beginning to explore its effects on physiology, consciousness and subjective experience.

Below are 17 benefits I find particularly interesting — some supported by growing scientific evidence, others best understood through physiology, therapeutic practice and lived experience.

Nervous system & stress regulation

The aim isn't to remain calm all the time. A healthy nervous system is able to move between activation and rest — and find its way back.

1. Supports Nervous System Flexibility & Regulation

Breathing is unusual because it happens automatically, yet we can also consciously change it.

That gives us a direct way to interact with processes connected to the autonomic nervous system.

Slow-paced breathing in particular can influence heart rate, respiratory patterns and autonomic activity. With practice, it may help us become more aware of our internal state and more flexible in how we respond to activation and stress.

But regulation does not simply mean moving into parasympathetic rest.

Sometimes we need activation. Sometimes restoration. Sometimes mobilization. Sometimes stillness.

Regulation is our capacity to move between states without becoming chronically stuck in one of them.

2. Helps Reduce Stress, Tension & Physiological Arousal

Your breath reflects your inner world. When you’re tense or anxious, your breathing becomes shallow or even held. And our breath often changes before we consciously realize we are stressed.

It becomes shorter. Faster. Higher in the chest.
Or sometimes we barely breathe at all.

Intentional breathing can interrupt that pattern. Research suggests that regular Breathwork — particularly slower breathing practices — can reduce perceived stress and physiological arousal, with studies also reporting reductions in cortisol and other markers of the stress response. A 2023 meta-analysis of randomized controlled trials found small-to-moderate improvements in stress, anxiety and depressive symptoms.

This doesn’t mean all Breathwork affects the body in the same way. More activating practices may initially increase arousal before moving toward integration and settling — which is another reason the technique, context and intention matter.

The breath gives us a way to experience something important: our internal state can change.

Over time, it can become one of the ways we teach the body that stress is not the only available response. A few breaths may not make stress disappear. But, our breath can become one of the ways we teach the body that it has more than one possible response.

Emotional Processing & Inner Capacity

Sometimes the breath doesn't make an emotion disappear. It gives us enough space to finally feel it, and help heal it.

3. Supports Emotional Processing

Emotions are not only thoughts. Actually sometimes our body remembers what your mind forgets.

They have physical expressions too: changes in breathing, heart rate, muscle tension, temperature, posture and sensation.

Breathwork brings our attention back into that embodied experience.

Rather than analysing an emotion entirely from the mind, we may begin noticing where and how it is being experienced in the body.

This can create another route into emotional processing — one where we don't necessarily need to understand or explain everything before we can begin to meet it.

The majority or our brain activity happens beyond conscious awareness - including trauma responses, limiting beliefs, and protective patterns held in the nervous system. By creating a safe space within, breathwork helps you move through emotional imprints and trauma at a pace your body can hold.

4. Creates Space for Difficult Emotions & Old Patterns

During deeper Breathwork, emotions can sometimes emerge unexpectedly.

Grief. Anger. Fear. Relief. Laughter. Tenderness. Or something that doesn't need a name at all.

I don't think this means emotions are literally sitting somewhere in the body waiting to be excavated. But our nervous system, memory, emotion and bodily responses are deeply intertwined, and stored emotions can create a feeling of stuckness, or even appear as a physical respons of tension or pain. 

When the usual cognitive control softens, we may become aware of sensations, feelings or patterns that were previously outside our attention.

The invitation isn't to force release. It's to create enough safety and capacity for whatever arises to be felt, witnessed and integrated.

5. Can Support Anxiety & Emotional Regulation

Breathing and anxiety have a powerful two-way relationship.

Anxiety can change our breathing — and changing our breathing can influence how we feel.

Slow breathing has been associated with reductions in anxiety and arousal, and broader Breathwork research has found promising effects on anxiety symptoms.

For someone living in chronic activation, learning to work consciously with the breath can offer something particularly important:

a felt experience that their internal state is not completely fixed.

That experience can become a resource in itself. Over time it may help you respond to stress and support emotional regulation - even in moments that used to feel overwhelming.

6. Creates More Space Between Impulse & Reaction (example addiction, craving)

Breathwork is not a treatment for addiction in itself, and it should not replace appropriate medical or psychological care.

But breath awareness can become a useful self-regulation tool.

Instead of immediately acting on discomfort, craving or an impulse, we practice staying with sensation for a little longer.

Breathing.

Noticing.

Allowing the wave to change.

Over time, this capacity to remain present with discomfort may create more choice between stimulus/impuls and response/reaction. And it may support addictive patterns, reduce cravings, and strengthen self-trust.

7. Deepens Self Love, Interoception & Body Awareness

Many people feel disconnected from themselves—trapped in thought loops, inner criticism, or striving. One of the most interesting parts of Breathwork is interoception — our ability to sense what is happening inside the body.

Heartbeat. Breathing. Tension. Warmth. Pressure. Emotion.
Subtle shifts we might normally miss.

Through Breathwork, attention moves away from analysing ourselves only through thought and toward experiencing ourselves directly.

That increased inner awareness may help us recognize activation, emotion and needs earlier — before they have to become overwhelming.

For many people, this is also what begins to feel like a stronger connection to intuition.

One theory that may help explain this shift is transient hypofrontality — a temporary reduction in some of the brain’s usual executive control during altered or deeply absorbed states. Breathwork research is still emerging here, but newer neuroimaging and EEG studies are beginning to map how breathing practices alter neural dynamics and self-referential experience.

When the mind quiets, the heart can open.

8. Supports Presence, Connection & Emotional Resilience

Breathwork repeatedly brings us back to what is happening now.

Not yesterday.

Not the conversation we're rehearsing for tomorrow.

Not the ten things we need to fix.

Here. Body. Breath. Sensation.

Over time, this can help build our capacity to stay present even when an experience is uncomfortable.

And perhaps resilience is not the absence of discomfort.

Perhaps it is knowing that we can meet what comes — without immediately abandoning ourselves.

Energy, vitality & embodiment

We anchor the work in the body - with physical & biological benefits  - not only emotions. Some benefits are easier to measure. Others are easier to feel.

9. Can Increase Subjective Energy & Aliveness

Not every breathing technique increases energy.

Some intentionally settle the system. Others are activating.

More dynamic breathing practices can create strong shifts in bodily sensation and subjective energy, while slower practices may reduce the exhaustion associated with sustained stress. 

Dynamic Breathwork can create a pronounced subjective sense of energy and vitality. This is not simply because we are “getting more oxygen”; changing breathing patterns also changes CO₂, blood chemistry, autonomic activity and sensory experience.

What people often describe after a Breathwork session is not simply feeling “energized.”

They describe feeling more alive.

More awake. More present. More connected to themselves.

That experience of vitality is one of the reasons ideas such as prana, chi or life force have remained central to contemplative breathing traditions for centuries.

Different language.

A deeply human experience.

10. Can Help Release Physical Tension or Pain

Stress often involves physical bracing.

Jaw tightens. Shoulders rise. The belly hardens. The diaphragm becomes restricted.

Breathing consciously can make these patterns easier to notice and may help the body gradually soften them.

Sometimes the shift is subtle.
A deeper exhale.
A shoulder dropping.
A jaw unclenching.

Sometimes deeper Breathwork brings trembling, tingling, temporary muscular contractions or changes in temperature.

These experiences have physiological explanations involving breathing pattern, CO₂ and nervous-system activation, and they do not automatically mean something is “being released.”

If you've ever experienced stiff, tingling or claw-like hands during Breathwork, I explore that phenomenon separately in my article on tetany and physical sensations during Breathwork.

More activating Breathwork can temporarily lower CO₂ and raise blood pH — a physiological state known as respiratory alkalosis. These changes help explain some of the strong bodily sensations people experience during Breathwork.

There are people experiencing pain relief after breathwork, one potential reason could by increasing endorphins (feel-good hormones), and muscle relaxation including the diaphragm. The research is not enough around the topic - but some say Breathwork reduce cortisol, which plays a role in inflammation and pain sensitivity.

11. Supports Relaxation & Better Sleep

If your mind races at night, your nervous system may still be in high alert. And a nervous system that is still mobilized at bedtime doesn't always respond well to the instruction:

Just go to sleep.

Slower breathing practices can help reduce arousal, slow respiratory rate and create conditions more supportive of rest.

The useful distinction here is which Breathwork you choose.

An activating conscious-connected session and five minutes of slow breathing before sleep are not physiologically identical practices.

For sleep, gentler breathing is usually the more relevant tool, and can become a simple ritual to restore your nights. This will help to shift your body into parasympathetic dominance, slowing the heart rate, calming the mind and supporting a shift toward a state more conducive to sleep

12. Improves Digestion and Supports the Gut–Brain Connection Through Regulation

Stress and digestion are closely connected through the autonomic nervous system.

When the body perceives threat, resources are prioritized differently than when we feel safe enough to rest, digest and restore.

Breathing practices that reduce physiological arousal may therefore indirectly support digestive comfort by influencing the state in which digestion takes place.

I wouldn't describe Breathwork as a treatment for digestive conditions.

But I do think it's useful to remember:

digestion doesn't happen separately from the nervous system.

Breathwork increases vagal tone, improves blood flow to digestive organs, reduces inflammation, and supports the gut-brain connection. Over time, this can help reduce symptoms like bloating, constipation, and gut tension often linked to stress.

An Emerging Area: Neuroendocrine & Immune Effects

Research is also beginning to explore how deeper forms of Breathwork may interact with systems beyond the nervous system alone.

A 2025 physiological study of conscious connected breathing found acute changes in several neuroendocrine and immune-related markers, including cortisol, prolactin and IgA during the practice.

It is still too early to translate these findings into claims that Breathwork “boosts immunity” — we don’t yet know what these acute changes mean clinically or whether they lead to longer-term effects.

But I find the research fascinating because it reinforces something increasingly clear: the breath does not influence one isolated system. Changes in breathing interact with nervous-system activity, blood chemistry, hormones, immune signaling and our subjective experience at the same time.

This is an emerging area of research, and one I think will be particularly interesting to follow.

Capacity, Clarity, Consciousness & Expanded States

This is where cognition and consciousness meet. A grounded integration, gives cognitive clarity, giving expanded awareness. Which is how breathwork actually works. Breathwork isn't only about calming down. Sometimes the work is learning that we can safely feel more.

13. Builds Greater Capacity for Activation & Sensation

This may be one of the most overlooked benefits of deeper Breathwork.

We often talk about nervous-system regulation as though the goal is to make ourselves calmer.

But many people don't actually need to become less alive.

They need a greater capacity to stay present while feeling more.

More emotion. More sensation. More excitement. More energy. More uncertainty.

Facilitated Breathwork can give us an opportunity to experience activation while remaining connected to the body and supported by a safe container.

The learning isn't:

Nothing intense will ever happen.

It's:

Intensity can move through me without me losing myself.

EEG studies suggest that conscious breathing can alter patterns of brain activity, including alpha, theta and beta activity — although the direction and magnitude depend on the technique. Some protocols are associated with greater alpha activity and relaxation, while deeper or prolonged practices may also involve theta activity linked with inward attention, insights and altered states.

• Beta (thinking/stress)

• Alpha (calm flow)

• Theta (deep insight, dream-like altered states)

14. Supports Focus, Cognitive Flexibility & Creativity

Breath and attention are intimately connected.

When we consciously regulate breathing, we interrupt habitual patterns of attention and create a different internal state from which to think and respond.

Research into structured breathing and breathing meditation suggests potential benefits for mood, attention and cognitive flexibility, although effects vary considerably depending on the practice studied.

Creativity also seems to flourish when we are less trapped inside rigid cognitive loops.

Sometimes clarity doesn't arrive because we think harder.

Sometimes it arrives because something inside us finally has enough space to move.

15. Alters Brainwaves, Expands Consciousness & Deepens Self-Awareness

Some Breathwork practices can soften our usual analytical mode and create a very different quality of inner attention.

Images may arise. Memories. Insights. Unexpected associations. Symbolic material.

A feeling of simply knowing something without being able to explain where it came from.

Science cannot tell us that every image appearing during Breathwork contains hidden wisdom, nor should we automatically interpret every experience as meaningful - sometimes it can be the emotion itself, or the relation we have with what we see than may bring meaning or perspective. 

But altered attention can allow us to notice material that is normally overshadowed by everyday thinking.

This is one reason I see Breathwork not only as a breathing practice, but as a form of inner exploration.

16. Can Create Altered States of Consciousness

This is one of the most fascinating areas of emerging Breathwork research.

High-ventilation, circular breathing, conscious connected breathing can create measurable physiological changes — particularly reductions in CO₂ — alongside shifts in subjective consciousness and open for profound inner journeys.
Without substances. Just breath.

Recent studies have reported experiences including changes in perception, emotion, sense of self and time, with some participants describing states that share phenomenological qualities with psychedelic experiences.

That doesn't make Breathwork “a psychedelic” or dangerous. It means the breath itself can profoundly alter how consciousness is experienced.

And we are only beginning to understand how.

EEG studies show that breathing can alter alpha, theta, beta and other aspects of brain activity. But newer research into Breathwork-induced altered states suggests something even more interesting: the intensity of psychedelic-like experiences may relate to increased neural complexity rather than a simple shift from one brainwave band to another.

17. Can Create Experiences of Connection, Meaning & Spirituality

Some benefits of Breathwork are difficult to fit neatly into a biological measurement.

People sometimes describe:

deep connection.
surrender.
love.
oneness.
a sense of meeting something larger than themselves.
contact with grief or people they have lost.
or simply an extraordinary feeling of being completely present inside their own life.

The breath becomes a bridge—to intuition, to the subconscious, to the soul. These experiences can be powerful catalysts for growth and healing, especially when grounded in integration afterward.

I don't think we need to decide exactly what these experiences are in order to respect them.

They can be understood psychologically.
Neurologically.
Spiritually.
Energetically.
Or perhaps through several lenses at once.

What matters to me as a facilitator is not telling someone what their experience means.

It is creating a grounded space where they can meet it with curiosity — and integrate whatever remains meaningful afterward.

Perhaps this is why Breathwork can feel so holistic. Breathing does not happen in isolation: it interacts with cardiovascular, autonomic, neural and metabolic processes, while also shaping attention, emotion and subjective experience. Different traditions use different language for this interconnectedness — physiology, embodiment, energy, spirit — but the breath sits at the meeting point of many of them.

So, What Are the Real Benefits of Breathwork?

Perhaps the greatest benefit of Breathwork isn't one particular outcome.

It is learning that our internal state can move.

The breath can help us regulate.

It can help us activate.

It can bring us more deeply into the body.

It can change what we notice.

And in deeper practices, it can sometimes open experiences that sit somewhere between physiology, psychology and consciousness.

Not every session will be profound.

Not every practice needs to be.

Sometimes five minutes of breathing creates exactly the shift we need.

Sometimes a longer facilitated journey takes us somewhere we could never have reached through thinking alone.

Both belong.

Breathwork in Stockholm & Online with Kia

My own work with Breathwork combines nervous-system awareness, deeper conscious-connected breathing, somatic attention, emotional processing and integration.

Sessions can be quiet. They can be emotional. They can be physical. They can sometimes feel expansive or almost psychedelic. They can be Life Changing. 

But the goal is never to manufacture an experience.

My role is to create the conditions where your own system can respond in the way it needs to.

If you're curious to experience this work, you can explore my Breathwork sessions in Stockholm and online, join a group session, or begin through The Field,  my online space for Breathwork, meditation, astro and guided inner exploration.

Let the breath take you somewhere thinking alone cannot.

It’s your journey, but you are not alone. 

Frequently Asked Questions About Breathing and Breath work below

Breathing and journeying with Kia Agerhem is a safe and transformative experience for your emotional, physical, spiritual and mental body

What’s the difference between breathwork and just breathing deeply?

Breathing deeply is a good start, but Breathwork is an umbrella term for intentionally changing or working with breathing in order to influence our physiological, emotional or attentional/spiritual state.

Breathwork can activate, soothe, or clear stuck energy depending on the method used. Continuous connected breathing can for example create powerful physical, emotional or altered-state experiences.

So “Breathwork” isn't one technique — and its effects depend enormously on the method used. Not only how you breathe, but also why and when.

Can breathwork really reduce stress or anxiety?

Yes, research suggests that breathing practices can help reduce stress and anxiety, particularly slower and structured breathing techniques, ir intense ones with guided expertise. A meta-analysis of randomized controlled trials found significant, although modest, improvements in stress, anxiety and depressive symptoms compared with control conditions.

When you learn to regulate your breath, you influence your nervous system directly. Many people live in chronic fight-or-flight, or a chronic collapse. Breathwork helps the body return to safety, shifting out of stress chemistry and into calm. This is why it’s often used for anxiety, burnout, or overwhelm.

Breathwork should still be understood as a supportive practice rather than a replacement for mental-health treatment when treatment is needed.

What happens to the nervous system during Breathwork?

It depends on the technique. Slow breathing can support reduced physiological arousal and parasympathetic influence.

More activating Breathwork may initially increase arousal, change CO₂ levels and create intense bodily sensations before moving toward a quieter integration phase.

This is why I don't describe Breathwork simply as “calming the nervous system.”

Sometimes we regulate through settling.
Sometimes we regulate by safely moving through activation.

Why do my hands tingle or become stiff during Breathwork?

Faster or deeper breathing can lower CO₂ levels in the blood, which can temporarily change nerve and muscle excitability.

This may create tingling, numbness or contractions — particularly around the hands, feet or face — sometimes referred to as tetany.

I explore this separately in Why Do My Hands Become Cold, Stiff or Claw-Like During Breathwork?

Do I need to breathe through my nose all the time?

Nose breathing is ideal for everyday life—it filters, warms, and humidifies air, and supports nitric oxide production. But in breathwork, mouth breathing may be used temporarily to activate energy or access emotional release. The key is context and intention.

Can breathwork help with trauma or emotional release?

Yes, breathwork may support body awareness, emotional regulation and processing. Emotions lives in the body—not just the mind. Breathwork can with grounded, expertise and guidance invite what’s been held to safely surface and soften. It's a body-based practice that allows you to meet and move what talk therapy might not fully reach.

Note. Trauma is complex and can involve memory, emotion, physiology, nervous-system responses and patterns of protection.
For people with significant trauma histories, the pace, technique, facilitator and sense of safety matter enormously. You can always reach out if you have questions or feel anxious. 

Is breathwork safe for everyone?

Gentle breathing practices are accessible to many people, but more intense or high-ventilation Breathwork may not be appropriate for everyone.

Pregnancy and certain cardiovascular, neurological, respiratory and psychiatric conditions can require modification or medical guidance.

If you're uncertain, speak with an appropriately qualified healthcare professional and let your facilitator know beforehand. Breathwork can be powerful—start gently and modifications are very easily adapted. 

I have written a separate guide on Breathwork safety, contraindications and modifications.

Can Breathwork create psychedelic-like experiences?

Some high-ventilation forms of Breathwork can create altered states involving changes in perception, emotion, sense of self and time.

Recent studies have begun measuring these experiences and their relationship to physiological changes such as reduced CO₂.

That doesn't mean everyone will experience an altered state — nor should that be the goal.

How often should I practice breathing?

It depends entirely on the practice.
A few minutes of slow or regulating breathing can be used regularly. Longer activating sessions usually require more space for recovery and integration.

More isn't automatically better.

The useful question is not simply “How often should I breathe?”
It is:
“What does my system need from the breath today?”

Can kids do breathwork?

Yes—but keep it playful and simple. Children naturally know how to breathe fully (until stress or culture shifts their pattern). Teaching them to stay connected to their breath can be a beautiful tool for emotional regulation, focus, and sleep. A transformational breathwork session with Kia is not for kids, email for 1:1 with kids or for sporting teams etc 

Does breathwork replace therapy or medication?

Breathwork is a powerful complement to other healing methods—not a replacement. It can enhance your emotional awareness, support nervous system regulation, and deepen your healing journey. But always work alongside your healthcare provider if you’re in treatment.

Selected Research

Research into Breathwork is still young and many studies examine very different breathing protocols under the same broad label. The evidence is therefore best interpreted with curiosity rather than treating every breathing technique as interchangeable.

• Fincham et al. (2023), Effect of breathwork on stress and mental health: a meta-analysis of randomised-controlled trials.

• Balban et al. (2023), Brief structured respiration practices enhance mood and reduce physiological arousal.

• Lewis-Healey et al. (2024), research examining phenomenological and neural dynamics of Breathwork-induced altered states.

• Havenith et al. (2025), research linking reductions in CO₂ during circular Breathwork with altered-state intensity.

Breathwork - let the breath lead the way where our mind can’t always go. Kia offers Breathwork in Stockholm or Online, in group or private.