Breathwork and Breath Therapy Explained Simply

1. What It Is About

In breath therapy, a specialist guides the breathing. This includes exercises from physiotherapy, diaphragmatic breathing (the diaphragm is the large muscle beneath the lungs) and a therapy where air flows through the nose at a high rate. Breathwork, by contrast, is usually practised independently: slow breathing, fixed cycles or repeating specific patterns. Many of these patterns originate from yogic or contemplative traditions.

Both approaches aim to influence the autonomic nervous system. The autonomic nervous system controls heartbeat, breathing and digestion without conscious thought. Measurements include, for example, how strongly the heartbeat varies from beat to beat, how fast the heart beats or how strongly blood pressure reacts to breathing.

The application varies widely. Some studies examine a single session with a device that provides live feedback on bodily values (biofeedback). Others accompany people over several weeks or months in rehabilitation. Breathing patterns, duration and guidance also differ from study to study, and the technical terms are not consistent. This makes comparisons difficult.

2. What Studies Show

The best-studied application of breath therapy is in chronic lung diseases. In a study of 60 patients with moderate to severe COPD (a permanent lung disease with narrowed airways), one group received three months of outpatient rehabilitation with breathing training, physiotherapy and daily exercises, while the other received usual care. The breathing-training group reported less shortness of breath, walked further in the six-minute walk test and felt less exhausted. The improvements persisted, albeit with slightly reduced intensity, for up to two years, and the number of disease exacerbations decreased 1.

A second study accompanied asthma and COPD patients for three months with breathing training, coughing exercises, relaxation and movement. Afterwards, participants were able to tolerate physical exertion for longer, their pulse was lower and they walked 39 metres further in the walk test than the control group, which only took their medication. The difference was still measurable after six months 3.

For stress, anxiety and low mood, a review of twelve randomised studies involving 785 participants found that after breathing exercises such as slow or even breathing, they reported less stress, less anxiety and fewer depressive symptoms 6.

In a study of 60 patients with high blood pressure, three months of slow breathing at six breaths per minute, fast breathing at twelve breaths per minute and a control group were compared. In the slow-breathing group, blood pressure decreased more markedly and cardiovascular regulation improved 9.

An experiment with 24 healthy people combined ten days of meditation, conscious rapid breathing and cold exposure. After this, a small amount of a bacterial substance that triggers inflammation was injected. In these participants, anti-inflammatory messenger substances rose more quickly and pro-inflammatory ones were lower. These are laboratory findings in healthy people; whether they are relevant for people with chronic inflammation has not been investigated 2.

In a small study of 29 COPD patients, twelve weeks of yoga with breathing exercises was feasible. The burden of shortness of breath after a walk test decreased 5.

3. What Remains Unclear

For several applications frequently mentioned, controlled evidence is still lacking. This applies to asthma, high blood pressure and certain fatigue syndromes. For COPD, a large review of breathing exercises found inconsistent results: some studies showed improvements in shortness of breath and exercise capacity, others did not 8. A study of breathing training in asthma found no clear differences after twelve months, and many participants dropped out 7.

In performance anxiety among musicians, a single breathing session with biofeedback changed heart rate values, but anxiety remained unchanged 4.

Often, the groups are small, observation periods are short and participants know which treatment they are receiving. It is therefore difficult to separate what is due to the breathing exercise and what to attention or expectation. It is also unclear which breathing pattern, duration and frequency are best suited to which symptoms.

4. What This Means in Everyday Life

In the studies with the clearest results, breath therapy was one component of a larger programme that included movement, guidance and support. It is not possible to determine from these studies how much the breathing exercises alone contributed. In guided methods, a specialist sets the patterns and progression; self-guided breathwork is different, even though both target the same physiological processes.

The improvements described mainly concern shortness of breath, exercise capacity, stress and anxiety. How blood pressure or inflammatory markers behave over the long term remains to be seen. What needs to be clarified next: studies that directly compare one breathing technique with another, follow participants over a longer period and examine what actually matters in their daily lives.

All details with study numbers and sources: detailed page on breath therapy and breathwork. For children: Breath therapy and breathwork for children