The Science of Breathing

Explore the connection between breath, body and mind.

One breath happens automatically. The next can be a conscious choice.

Every day, we breathe thousands of times without giving it much thought.

Yet breathing has a remarkable characteristic: it operates automatically, while also allowing us to consciously influence its rhythm and pace.

This connection between voluntary breathing and the body's automatic processes has fascinated researchers for decades.

At SeaBreathes, we explore how this relationship can be combined with sound, rhythm, voice, silence and visual movement to create enjoyable moments of calm, focus and reconnection.

Our approach is inspired by scientific research, but grounded in a simple idea:

You shouldn't need to understand the science to enjoy the experience.

1. Why breathing matters

Breathing does more than move air in and out of our lungs.

It interacts with our cardiovascular system, nervous system and the physiological processes involved in responding to changing demands.

When we feel stressed or excited, our breathing patterns may change.

When we consciously alter our breathing, we can also influence certain physiological responses.

This relationship is one reason breathing exercises have attracted increasing scientific interest.

Unlike many automatic bodily processes, breathing offers a relatively accessible way to participate in regulating our physiological state.

You don't need specialist equipment.

You don't need years of experience.

And you don't need to achieve a particular breathing rate.

Sometimes, simply paying attention to a comfortable breath is a useful place to begin.

2. The nervous system connection

Our autonomic nervous system helps regulate processes such as heart rate, digestion and breathing.

Two important components are:

The sympathetic nervous system

Involved in preparing the body to respond to challenges and demands.

The parasympathetic nervous system

Involved in many restorative and regulatory processes, including aspects of cardiovascular control.

These systems work together continuously.

Research suggests that slow, controlled breathing can influence the relationship between breathing, heart rate and autonomic activity.

Some studies have observed changes in physiological measures associated with parasympathetic cardiac regulation during slow breathing.

However, these findings do not mean that every breathing exercise automatically produces relaxation or that the nervous system operates as a simple on/off switch.

Individual responses vary.

SeaBreathes encourages comfortable breathing rather than attempting to force a particular physiological response.

Research foundation

Zaccaro and colleagues (2018) systematically reviewed the psychophysiological effects of slow breathing.

Their review identified relationships between voluntary breathing patterns, cardiovascular regulation and aspects of nervous-system activity.

The authors also highlighted the need for further research into the underlying mechanisms.

Read the research:
How Breath-Control Can Change Your Life — Zaccaro et al. (2018)

3. Breathing and heart-rate variability

Our hearts do not beat at perfectly uniform intervals.

Small variations occur naturally between successive heartbeats.

Researchers refer to these differences as heart-rate variability, or HRV.

HRV is influenced by several physiological processes, including breathing and autonomic cardiovascular regulation.

One particularly interesting phenomenon is respiratory sinus arrhythmia.

During normal breathing, heart rate commonly increases slightly during inhalation and decreases during exhalation.

Slow-paced breathing can influence the size and timing of these fluctuations.

What does the research show?

A systematic review and meta-analysis published by Laborde and colleagues in 2022 examined voluntary slow breathing and measures of heart-rate variability.

The researchers reported increases in certain HRV measures during breathing exercises, immediately afterwards and following repeated practice.

A separate 2024 meta-analysis by Shao and colleagues examined 31 studies involving 1,133 participants.

It found evidence of immediate changes in several cardiovascular measures, including some measures of HRV, heart rate and systolic blood pressure.

However, the longer-term effects were less certain.

These findings are scientifically interesting, but HRV is complex.

An increase in HRV during paced breathing does not necessarily mean that someone's overall health has improved.

SeaBreathes does not measure HRV or claim to optimise cardiovascular health.

Instead, this research helps explain why breathing rhythm is an interesting foundation for guided wellbeing experiences.

Research references

Effects of Voluntary Slow Breathing on Heart Rate and Heart Rate Variability — Laborde et al. (2022)

The Effect of Slow-Paced Breathing on Cardiovascular and Emotion Functions — Shao et al. (2024)

4. Can breathing help with stress?

Stress is a natural part of life.

It can influence our attention, emotions, breathing patterns and physical responses.

Researchers have investigated whether deliberately changing breathing patterns can help people manage their experience of stress.

The results are encouraging, although not conclusive.

What researchers found

A 2023 meta-analysis published in Scientific Reports examined randomised controlled trials investigating breathwork and mental health.

For perceived stress, the analysis included 12 trials involving 785 adults.

Overall, breathwork was associated with a small-to-moderate reduction in self-reported stress compared with control conditions.

The researchers also found promising results for anxiety and depressive symptoms.

However, many included studies had methodological limitations, and the authors emphasised the importance of better-quality research.

Importantly, another randomised trial involving 400 participants found that slow coherent breathing did not outperform a matched breathing comparison for improving mental-health and wellbeing outcomes.

Both groups improved over time.

This suggests that factors such as attention, expectation, routine and taking time for oneself may also contribute to the experience.

What this means for SeaBreathes

We believe breathing can provide a useful focus for intentional moments of calm.

But we do not believe every breathing pattern produces the same effects for everyone.

SeaBreathes does not promise to eliminate stress, treat anxiety or produce a guaranteed emotional response.

Our aim is simpler: to make taking a comfortable, intentional pause feel accessible and enjoyable.

Research references

Effect of Breathwork on Stress and Mental Health — Fincham et al. (2023)

Effect of Coherent Breathing on Mental Health and Wellbeing — Fincham et al. (2023)

5. Why rhythm?

Rhythm is present throughout human life.

We experience it through music, movement, speech, walking and breathing.

Breathing itself is rhythmic, although its pace naturally changes throughout the day.

Many breathing practices use timing to provide a predictable structure for inhalation and exhalation.

Research into slow-paced breathing frequently examines rhythms of approximately five to six breaths per minute.

At certain breathing frequencies, researchers have observed pronounced interactions between respiratory and cardiovascular rhythms.

However, there is no single breathing frequency that is universally ideal for every person or situation.

Comfort, individual differences and the nature of the activity all matter.

The SeaBreathes approach

We use rhythm as a form of guidance.

Rather than requiring constant attention to numbers or countdowns, rhythmic cues can communicate the changing phases of an experience.

A sound may gently introduce an inhalation.

A musical phrase may accompany an exhalation.

A moment of silence may create space to return to natural breathing.

The intention is to make guidance feel intuitive rather than demanding.

Rhythm provides the structure. You provide the breath.

6. Why sound, voice and silence?

Breathing is only one part of the SeaBreathes experience.

We also explore how carefully designed audio and sensory cues can shape the way a session feels.

Sound

Sound can provide atmosphere, continuity and a sense of movement.

Within SeaBreathes, sound helps establish the character of each experience.

Voice (Next update)

Spoken guidance can communicate instructions without requiring someone to keep watching a screen.

A gentle voice can also provide reassurance and continuity throughout a session.

Silence

Silence is an intentional part of our design.

Not every moment needs an instruction.

Allowing space between cues can give users an opportunity to follow their own natural breathing rhythm.

Visual movement

Visual cues provide another way to communicate pacing.

For people who prefer visual guidance, movement can complement or replace some of the information delivered through sound.

What does the science say?

Research supports the study of breathing, attention and physiological regulation.

However, the specific combination of sound, voice, silence, rhythm and visual cues used in SeaBreathes has not been independently demonstrated to produce superior health outcomes.

Our sensory design is therefore a product-design approach informed by research, rather than a clinically validated treatment method.

We believe thoughtful design can make guided breathing more approachable.

Whether a particular experience feels calming, focusing or enjoyable remains personal.

7. Why we don't believe in the perfect breath

People breathe differently.

Our natural breathing patterns change with activity, posture, health, emotions and individual physiology.

A rhythm that feels comfortable to one person may feel unnatural to another.

For this reason, SeaBreathes does not treat breathing as a competition.

We don't believe users should feel pressured to achieve a particular breathing rate.

Nor should they feel they have failed if they cannot comfortably follow a suggested pattern.

Guidance should adapt to the person — not the other way around.

If a breathing pattern feels uncomfortable, return to your natural breathing.

You can pause or stop a session whenever you choose.

There is no perfect performance to achieve.

8. What SeaBreathes is — and what it isn't

What we aim to provide

SeaBreathes is a guided wellbeing experience designed around breathing and sensory engagement.

Our goals are to make intentional pauses more accessible, provide enjoyable breathing guidance and create opportunities to step away from everyday distractions.

What we do not claim

SeaBreathes is not a medical device or healthcare service.

We do not claim that our sessions diagnose, prevent, treat or cure medical conditions.

We do not claim that particular sound frequencies, breathing rhythms or sensory combinations produce guaranteed neurological or physiological benefits.

We also do not claim that SeaBreathes itself has been clinically validated.

The scientific studies discussed on this page investigate breathing practices and related physiological or psychological outcomes. They are not clinical trials of the SeaBreathes application.

We believe responsible wellbeing design begins with being clear about what the evidence does — and does not — establish.

9. Breathing safely

Breathing exercises should feel comfortable.

Avoid forcing unusually deep or rapid breaths, straining to maintain a rhythm or holding your breath beyond what feels natural.

If you experience dizziness, tingling, breathlessness, discomfort or other concerning symptoms, stop the exercise and return to normal breathing.

Use SeaBreathes in a safe, comfortable environment.

Do not practise guided breathing while driving, swimming, operating machinery or performing activities requiring your full attention.

If you have a cardiovascular, respiratory or other medical condition, or are unsure whether breathing exercises are suitable for you, seek advice from an appropriate healthcare professional.

SeaBreathes is intended for general wellbeing and does not replace professional medical advice or treatment.

10. Our approach to research

Science continues to develop.

New studies may strengthen, refine or challenge existing explanations of breathing and wellbeing.

We welcome that.

Our intention is to remain curious, responsible and transparent about the research that informs SeaBreathes.

As evidence develops, we aim to review the scientific information presented here.

We also recognise an important distinction:

Research supporting a breathing technique is not the same as research validating a particular breathing application.

SeaBreathes is inspired by research into breathing, but its individual sensory experiences should be understood as creative wellbeing experiences rather than clinically proven interventions.

We believe this distinction matters.

Trust should be earned through clarity, not exaggerated promises.

Explore the experience

Understanding the science can be fascinating.

But you don't need to understand heart-rate variability, autonomic regulation or respiratory physiology to enjoy a moment of guided breathing.

You simply need somewhere comfortable and a little time for yourself.

Choose an experience.

Listen.

Follow the guidance.

Breathe comfortably.

Your space. Your pace.

[ Explore SeaBreathes ]

Try SeaBreathes free. An optional one-time Full unlock opens the complete experience.

Research and transparency

The research discussed on this page includes peer-reviewed systematic reviews, meta-analyses and randomised controlled trials.

These studies investigate breathing practices and related outcomes. They should not be interpreted as clinical evidence establishing the effectiveness of SeaBreathes itself.

Research references are provided throughout the page so readers can explore the original publications.

Last research review: October 2026

Waves from SeaBreathes 🌊

Story - Home - Privacy - Terms - Follow

Contact: SeaBreathes.app@gmail.com