THERAPIES & TRADITIONS · GUIDE
Index of Breathwork Evidence by Health Concern
An index of what research found for breathing practices in stress, anxiety, sleep, blood pressure, asthma, COPD and more, with an evidence label and a link to the full page for each.
Content last updated . This page has not been medically reviewed.
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This page points you to our condition pages and gives one line from a source we read for each. It is information, not advice. Breathing practice is at most an add-on to medical care. Do not stop or change inhalers, blood pressure medicines or psychiatric medicines because of a breathing exercise.Urgent. MedlinePlus advises going to the emergency room or calling the local emergency number (such as 911) if breathing difficulty comes on suddenly or seriously interferes with your breathing and even talking. [1] For a mental health crisis in the US, the 988 Lifeline is available 24/7. [2] See the safety quick reference.
How to read the table
Labels are ours, applied to the sources we read: promising but limited, mixed, insufficient evidence or see the page. Most outcomes in the stress and anxiety trials were self-reported and compared with non-breathwork controls, [3] and because people know when they are breathing differently, expectation can shape self-reported results. Some research authors teach or sell the methods they study, and we note it where a source says so. We did not find, and are not claiming, any source showing breathwork cures or prevents a disease.Mental health, stress and sleep
| Concern | What a source we read found | Label |
|---|---|---|
| Everyday stress (also see the wellness overview) | A meta-analysis of 12 randomised trials with 785 adults found lower self-reported stress than non-breathwork controls, a small-to-medium effect. [3] Most studies had moderate risk of bias. [3] The first author has trained as a breath teacher. [3] | Promising but limited |
| Anxiety | The same meta-analysis found similar effects for self-reported anxiety (20 trials) and depressive symptoms (18 trials). [3] The authors urge avoiding a miscalibration between hype and evidence. [3] | Promising but limited |
| Panic attacks and panic disorder | The NHS says talking therapies and medicine are the main treatments for panic disorder. [4] It also says panic attacks, though frightening, are not dangerous. [4] | See the page |
| Sleep and insomnia | The NCCIH says relaxation techniques on their own do not seem especially promising for sleep, and that guidelines recommend cognitive behavioral therapy for insomnia first. [5] | Insufficient evidence |
| PTSD and trauma | A review of high ventilation breathwork called for rigorous clinical testing of its potential therapeutic uses. [6] The NCCIH notes rare reports of relaxation techniques worsening symptoms with a history of abuse or trauma. [5] | Insufficient evidence |
| Everyday stress, bedtime and panic sensitivity | A combined guide to gentle options and cautions. | See the page |
Heart, lungs and breathing symptoms
| Concern | What a source we read found | Label |
|---|---|---|
| Blood pressure | A meta-analysis of 17 studies found slow breathing showed a modest reduction in blood pressure, with high heterogeneity, in hypertensive and prehypertensive patients at low cardiac risk. [7] | Promising but limited |
| Asthma | A Cochrane review of 22 studies (2,880 participants) found improved quality of life at three months, but risk-of-bias assessment was impaired by incomplete reporting and adverse effects were not an outcome. [8] The NHS says asthma cannot currently be cured, but if it is well treated you should not have problems with symptoms. [9] | Mixed |
| COPD | A Cochrane review of 16 studies found effects on breathlessness and quality of life inconsistent, though breathing exercises over four to 15 weeks improved functional exercise capacity. [10] No significant adverse effects were reported. [10] | Mixed |
| Shortness of breath | The NHS says not to self-diagnose the cause of shortness of breath and to always see a GP. [11] | See the page |
| Lung health and recovery | Covers recovery after illness or surgery. | See the page |
| Dysfunctional breathing and hyperventilation syndrome | MedlinePlus says people who frequently overbreathe may have a medical problem called hyperventilation syndrome. [12] | See the page |
| Sleep apnea and snoring | The NHS says many people with sleep apnoea need a CPAP machine, and lists exercises for the mouth and facial muscles among other treatments. [13] | See the page |
| Inspiratory muscle training | Covers devices, uses and evidence. | See the page |
Other concerns
| Concern | What a source we read found | Label |
|---|---|---|
| Reflux (GERD) and diaphragmatic breathing | A systematic review of 48 trials found consistent benefits for GERD, but called the evidence base constrained by methodologically weak and heterogeneous studies. [14] | Promising but limited |
| Pain and chronic pain | The NCCIH summarizes reviews of relaxation and biofeedback for several pain conditions. [5] | See the page |
| Labor and childbirth | A 2018 review of 5 studies and 1,248 participants suggested relaxation techniques might help manage labor pain, with low to very low quality research. [5] | Insufficient evidence |
| Hot flashes (paced breathing) | The NCCIH reports a 2019 review of 4 studies and 398 participants that found overall evidence paced breathing could significantly improve hot flashes. [5] | Promising but limited |
| Children and teens | The NCCIH says much of the supporting research on relaxation techniques for young people was rated low quality. [5] | Insufficient evidence |
| Pregnancy and postpartum | Evidence and cautions are on the page. | See the page |
| Voice, singing and speech | Teaching traditions and evidence are on the page. | See the page |
Where we looked and found nothing usable
Proper evidence not found, in the sources we read for this index, that breathing practice treats or prevents any condition by itself. We checked the meta-analyses and reviews cited above and the NCCIH relaxation fact sheet. They report symptom or measure changes, often small, with limited study quality. We also did not find, in the sources we read, a trial-based comparison that shows one breathing technique to be better than the others.Related guidance
For the overall picture, see the breathwork evidence overview. For how trials are run and why they can mislead, see how breathing research is done. For people with existing conditions, see the cautions pages for heart conditions, lung conditions and anxiety or panic history.Frequently asked questions
Does breathwork work for anxiety?
A meta-analysis found lower self-reported anxiety than non-breathwork controls, but the authors urge caution about hype. [3] The NHS names talking therapies and medicine as the main treatments for panic disorder. [4] If anxiety persists, the NCCIH says it is important to seek help from a qualified health care professional. [5]
Can breathing exercises lower blood pressure?
A meta-analysis found a modest reduction with slow breathing in hypertensive and prehypertensive patients at low cardiac risk, with high heterogeneity. [7] Do not change your medicines without your clinician.
Can breathing exercises replace my asthma medicine?
No source we read says so. The NHS tells people to use their reliever inhaler during an asthma attack. [9] The Cochrane review did not include adverse effects as an outcome. [8] See your care team about how breathing exercises might fit alongside your treatment.
Are breathing exercises helpful for COPD?
A Cochrane review found improved functional exercise capacity but inconsistent effects on breathlessness and quality of life. [10] Ask about pulmonary rehabilitation with your clinician.
How reliable are these studies?
Quality varies. Most trials in the stress meta-analysis were at moderate risk of bias, [3] and the diaphragmatic breathing review found methodological quality a significant concern. [14]
References
- MedlinePlus, Breathing difficulty. U.S. National Library of Medicine. Review date 4/1/2025. Read 2026-10-22.
- 988 Suicide & Crisis Lifeline. Read 2026-10-22.
- Fincham GW, et al. Effect of breathwork on stress and mental health: a meta-analysis of randomised-controlled trials. Sci Rep. 2023. Read 2026-10-22.
- NHS, Panic disorder. Read 2026-10-22.
- NCCIH, Relaxation Techniques: What You Need To Know. U.S. National Institutes of Health. Last updated June 2021. Read 2026-10-22.
- Fincham GW, et al. High ventilation breathwork practices: an overview of their effects, mechanisms, and considerations for clinical applications. Neurosci Biobehav Rev. 2023. Read 2026-10-22.
- Chaddha A, et al. Device and non-device-guided slow breathing to reduce blood pressure: a systematic review and meta-analysis. Complement Ther Med. 2019. Read 2026-10-22.
- Santino TA, et al. Breathing exercises for adults with asthma. Cochrane Database Syst Rev. 2020. Read 2026-10-22.
- NHS, Asthma. Read 2026-10-22.
- Holland AE, et al. Breathing exercises for chronic obstructive pulmonary disease. Cochrane Database Syst Rev. 2012. Read 2026-10-22.
- NHS, Shortness of breath. Page last reviewed 30 January 2024. Read 2026-10-22.
- MedlinePlus, Hyperventilation. U.S. National Library of Medicine. Review date 7/23/2024. Read 2026-10-22.
- NHS, Sleep apnoea. Read 2026-10-22.
- Kwon CY, et al. The health effects of diaphragmatic breathing: a systematic review. Complement Ther Med. 2026. Read 2026-10-22.
Education, not medical advice. This page is for general information. It does not diagnose or treat any condition and is not a substitute for care from a qualified health professional. Natural does not automatically mean safe. Ask a clinician or pharmacist before changing your care, especially if you take medication, are pregnant or breastfeeding, or have a health condition.