Mindra Haus Understanding how breathwork interacts with biology
Breathing is not only a way of taking in oxygen.
It is also a signal that influences the body.
Unlike many other biological processes, breathing happens automatically and can also be consciously controlled.
Every breath affects the exchange of oxygen and carbon dioxide, influences the nervous system, and provides information about the body’s internal state.
Breathwork explores what happens when we deliberately change the way we breathe.
The idea is simple:
Change the breath — and the body responds.
What Is Breathwork?
Breathwork refers to practices that intentionally change breathing patterns.
These changes may involve:
- breathing more slowly
- breathing more deeply
- breathing through the nose
- changing breathing rhythm
- extending inhalation or exhalation
There are many different breathwork methods.
Some are designed to promote relaxation.
Others are used to increase alertness or focus.
The body responds differently depending on the breathing pattern being used.
What Happens Inside The Body?
Breathing has two primary jobs.
The first is bringing oxygen into the body.
The second is removing carbon dioxide.
Most people think of oxygen as the important part of breathing.
However, carbon dioxide also plays a critical role.
The body constantly monitors both gases and adjusts breathing to maintain balance.
When breathing patterns change, the relationship between oxygen, carbon dioxide, and the nervous system changes as well.
These changes can influence:
- heart rate
- blood vessel function
- nervous system activity
- physical sensations and body state
Carbon Dioxide: The Often Forgotten Gas
Carbon dioxide (CO2) is produced by the body’s cells as they create energy.
It is not simply something the body removes.
It also helps regulate breathing and maintain internal balance.
Breathing removes excess carbon dioxide and helps keep the body’s chemistry stable.
When breathing becomes faster or deeper than the body requires, carbon dioxide levels can fall.
This is known as hyperventilation.
When carbon dioxide levels change significantly, people may experience:
- light-headedness
- tingling sensations
- dizziness
This is one reason different breathing techniques can create noticeably different physical experiences.
Breathwork is not only about oxygen.
It is also about how the body regulates carbon dioxide.
The Nervous System Response
Breathing and the nervous system are closely connected.
The autonomic nervous system controls many automatic functions within the body, including breathing, heart rate, and blood pressure.
It has two main branches:
Sympathetic nervous system
The part involved in alertness, activation, and the stress response.
Parasympathetic nervous system
The part associated with rest, recovery, and regulation.
Breathing patterns can influence activity within these systems.
Slow, deep breathing physically expands the lungs.
Stretch receptors within the lungs detect this movement and send signals through the nervous system, helping influence the body’s regulation systems.
Faster breathing can create a different physiological response.
This connection helps explain why breathing can influence how we feel.
Why Does Nasal Breathing Matter?
The nose does more than simply provide a passage for air.
It helps:
- filter particles
- warm incoming air
- add moisture to the air we breathe
Nasal breathing is also associated with the production of nitric oxide, a signalling molecule produced within the nasal passages.
Nitric oxide plays a role in blood vessel function and airflow within the respiratory system.
For this reason, many breathing practices place emphasis on breathing through the nose whenever possible.
Why Do People Explore Breathwork?
People explore breathwork for different reasons.
Relaxation
Many breathing practices focus on slowing the breath.
Some people use these techniques to create periods of calm and stillness.
Focus and Attention
Breathing patterns can influence alertness and awareness.
Some practices are used before work, study, exercise, or performance.
Stress Management
Because breathing and the nervous system are closely connected, breathwork is often explored as a way of influencing the body’s response to stress.
General Wellbeing
Many people are interested in breathwork because it requires no equipment and can be practised almost anywhere.
What Does Breathwork Feel Like?
The experience depends on the technique being used.
People commonly notice:
- greater awareness of breathing
- relaxation
- increased focus
- changes in physical sensations
Some breathing techniques create a calm and steady experience.
Others can feel energising or intense.
The response varies between individuals.
What Does The Research Suggest?
Research into breathing practices has explored areas including:
- stress regulation
- nervous system activity
- heart rate variability
- attention
- emotional regulation
Some applications have stronger evidence than others.
Results can vary depending on:
- the breathing method
- duration
- frequency of practice
- individual response
Breathwork is an area of ongoing research, and not every breathing technique has the same level of scientific support.
What Changes Over Time?
Breathing patterns can become habits.
Stress, posture, activity levels, and daily routines can all influence how people breathe.
Some breathing practices aim to increase awareness of these patterns.
Over time, repeated practice may change how a person responds to certain situations and stressors.
The goal is not to eliminate stress.
It is to better understand one of the body’s most fundamental processes.
Things To Consider
Breathwork is not one single practice.
Different techniques can produce different physiological responses.
Factors include:
Breathing rate
How quickly the breath cycles, influencing the body’s response.
Breathing depth
How much air moves in and out with each breath.
Inhalation and exhalation length
Changing the rhythm of breathing can alter the experience.
Individual health status
People respond differently depending on their baseline health and physiology.
More intense breathing is not automatically better.
The body’s response depends on the technique and the context in which it is used.
Some breathing methods may not be appropriate for everyone, particularly individuals with certain respiratory, cardiovascular, or medical conditions.
FAQ
What is breathwork?
Breathwork refers to practices that intentionally change breathing patterns in order to influence physiological or psychological responses.
What happens when you change your breathing?
Changing breathing patterns can alter oxygen and carbon dioxide levels, influence nervous system activity, and affect how the body responds.
Why is carbon dioxide important?
Carbon dioxide helps regulate breathing and maintain internal balance. It is not simply something the body removes.
What is hyperventilation?
Hyperventilation occurs when breathing becomes faster or deeper than the body’s current needs, causing carbon dioxide levels to fall.
Is nasal breathing better than mouth breathing?
Nasal breathing helps filter, warm, and humidify incoming air and is commonly encouraged during everyday breathing.
Does breathwork reduce stress?
Researchers have explored how breathing practices influence stress regulation and nervous system activity. Individual experiences and outcomes can vary.
How long does breathwork take to work?
Some people notice changes during a single session, while others view breathwork as a practice that develops over time.
Final Thought
Breathing is one of the body’s most constant activities.
It happens thousands of times each day, often without conscious thought.
Breathwork explores what happens when we bring attention to that process and deliberately change it.
By understanding how breathing interacts with oxygen, carbon dioxide, and the nervous system, we can better understand why something so simple can have such a noticeable effect on how we feel.