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Bhastrika (Bellows Breath): What It Is and Cautions

Bhastrika, the bellows breath, is a fast, forceful pranayama from the Hatha Yoga Pradipika. Learn its origin, what small studies found, the cautions, and why we give no instructions.

Content last updated . This page has not been medically reviewed.

Urgent first

Sudden sharp chest or shoulder pain that gets worse when you breathe in, with shortness of breath, can be a collapsed lung. [1] A larger one can bring lightheadedness and near fainting. [1] In the United States, call 911. If you feel dizzy, tingly, faint or short of breath during any breathing practice, stop and breathe normally. See dizziness, tingling and fainting during breathing exercises.

What it is

Bhastrika (Sanskrit for "bellows") is a pranayama, a yogic breathing practice, named for a blacksmith's bellows. Both the old text and modern studies describe it as fast, forceful in-and-out breathing; one 2024 study calls it "a vigorous yoga breathing technique." [2]

We do not give instructions for bhastrika. It is a forceful, fast breathing practice, and this site does not teach forceful breathing, deliberate overbreathing or breath-holding. This page describes where it comes from, what has been studied and what the cautions are, so you can make an informed choice.

Where it comes from

Bhastrika is described in the Hatha Yoga Pradipika, a 15th-century Sanskrit manual by Svatmarama. [3] In the Adyar Library edition, it is listed among eight kumbhakas (a term for breath-holding or retention practices [4]): "There are eight Kumbhaka-s, namely Surya- bhedana, Ujjayl, Sltkari, Sitali, Bhastrika, Bhramarl, Murcha and Plavini." [5] The text compares the pace to a smith working his bellows "with speed," and its description also includes a kumbhaka (breath-retention) step and nostril closure. [5]

The same text says the practice "removes the [disorders arising from] excess of wind, bile, and phlegm" and rouses the kundalini. [5] Those are traditional claims inside the Hatha yoga framework. They are not trial findings and this page does not present them as biology.

The text also warns its own readers. It says breath should be brought under control gradually, "Else it will kill the practitioner," and that a wrong course of pranayama produces hiccup, asthma, bronchial diseases and pains in the head, ears and eyes. [5] The scan we read has character-recognition errors, so wording may differ slightly in print editions.

Modern practice differs. A comparison of 73 studies against the traditional texts (25 of them on bhastrika) found that the depth of breathing used for bhastrika differs between the texts and the research. [4] So the name does not tell you exactly what a teacher or a study means.

What studies found

Almost all bhastrika research is small, short and done in healthy adults or experienced practitioners. We found no large trial of bhastrika in people with a health condition.
QuestionWhat the source foundLabel
Effect on the body during practiceIn 20 regular yoga practitioners, heart rate and sympathetic (stress-system) activity rose during and after the practice [2]Physiological finding, not a health benefit
Blood pressure and heartIn 20 healthy people, bhastrika raised diastolic blood pressure, mean arterial pressure and heart rate during practice [6]Physiological finding
Blood flow to the brainIn 15 trained men, bhastrika lowered blood flow velocity in a brain artery during practice, the opposite of the breath-retention practice tested alongside it [7]Physiological finding
Anxiety and moodA randomized trial in 30 healthy young adults over 4 weeks reported less anxiety and negative affect; the authors call the brain-scan analyses "preliminary and exploratory," and the abstract does not say what the comparison group did [8]Promising but limited (small, healthy people)
Thinking speedIn 60 healthy volunteers, 5 minutes of bhastrika did not change a flicker-fusion test compared with normal breathing (P = 0.32) [9]No benefit found in this test
Weight loss, detox, "healing" illnessProper evidence not found. We searched PubMed for bhastrika in titles and abstracts, plus bhastrika with safety, risk or harm terms, and found no trial supporting these claimsMarketing claim

These are mostly physiological findings, not health outcomes. They show that the practice changes the heart, blood pressure and brain blood flow while it is happening. They do not show that this is good for you, and they were not designed to test safety. Practice that is taught and done in person cannot be blinded, so expectation may shape self-reported results such as anxiety.

Gentler options

If you want breathing practice for relaxation, slow, comfortable breathing has more research behind it. See pranayama for beginners and breathwork for beginners.

Teachers and training

Regulation of yoga breathing teachers is not described in the sources we read. NCCIH advises practicing yoga under a qualified instructor and notes that learning alone has been linked with more risk. [13] We do not list teachers; ask about their training and tell them about your health conditions.

Related pages

The overview is pranayama. Related practices: kapalabhati and kumbhaka and breath retention.

Frequently asked questions

What does bhastrika mean?

It is a Sanskrit word for bellows. The Hatha Yoga Pradipika compares the breathing to a blacksmith working his bellows. [5]

Is bhastrika the same as kapalabhati?

No, though they are often grouped as fast yogic breathing. A study of heart and circulation found their changes during practice were "more or less similar," but they are separate practices in the texts. [6][5]

Is bhastrika safe?

No source we read shows it is safe for everyone. Reviews link fast and forceful pranayama with more adverse events, and NCCIH advises beginners to avoid forceful breathing. [10][13]

Does bhastrika reduce anxiety?

One small trial in 30 healthy young adults reported less anxiety after 4 weeks, but it was preliminary. [8] Slow, gentle breathing is better studied; see the evidence page on pranayama by outcome.

Does bhastrika detox the body or help weight loss?

Proper evidence not found. The traditional text makes claims about wind, bile and phlegm, which are part of its own framework and are not tested in the trials we read. [5]

More details: evidence, limits and cautions

The details behind this page: cautions, limits of the evidence and where sources disagree. Open any note to read it.

Cautions and possible harms
  • No bhastrika-specific harm report found, but that is not proof of safety. We searched PubMed for bhastrika with safety, risk and harm terms and found no case report of injury from it. That may reflect under-reporting, since studies rarely track harms.
  • Fast breathing and adverse events. A review of pranayama for mental disorders found adverse events were more often linked to fast than to slow techniques, and asked for better assessment of harms. [10]
  • Forceful pranayama in case reports. A 2026 review of yoga-related case reports counted 84 adverse events; forceful pranayama was among the most frequently implicated practices, with 8 cases (10%). [11] The authors note such events are uncommon.
  • Pressure on the belly and pelvic floor. A small preliminary ultrasound study of 15 female yoga teachers found a mixed picture, with negative impact on some measures and a protective reflex preserved in others, during fast breathing practices that include bhastrika. [12] It is too small to guide anyone.
  • NCCIH advice. For people new to yoga, NCCIH advises avoiding forceful breathing, and notes that severe high blood pressure and glaucoma can call for modifications. [13]
Who should avoid it or ask first
No source we read gives a complete official list of people who should not do bhastrika. In line with this site's safety rules, we advise that anyone with asthma or other lung disease, heart disease, high or low blood pressure, epilepsy, glaucoma, pregnancy, panic disorder, a trauma history or an eating disorder should not do rapid breathing, and should talk with their clinician about gentler options. Children and older adults should also check first. Never do it in or near water, while driving, or at heights.

If a class includes it, you can sit out and breathe normally. A teacher who pressures you to continue, or who promises cures, is a red flag; see breathwork facilitator red flags. Breathing practice never replaces medicines or medical care.

References
  1. MedlinePlus (US National Library of Medicine). Collapsed lung (pneumothorax). Read 2026-10-22.
  2. Malhotra V, Javed D, Pathak T. Effect of Bhastrika Pranayama on neuro-cardiovascular-respiratory function among yoga practitioners. Bioinformation. 2024. Read 2026-10-22 (abstract).
  3. Wikipedia. Hatha Yoga Pradipika (a general encyclopedia summary; used for dating and authorship only). Read 2026-10-22.
  4. Chetry D, Telles S, et al. A Comparison of Practice Guidelines for Yoga Breathing from the Traditional Texts and PubMed-Indexed Research. International Journal of Yoga Therapy. 2022. Read 2026-10-22 (abstract).
  5. Svatmarama. Hathayogapradipika, with the commentary Jyotsna of Brahmananda and English translation, Adyar Library and Research Centre edition, scanned on the Internet Archive (the scan text has character-recognition errors). Read 2026-10-22.
  6. Nivethitha L, Mooventhan A, Manjunath NK. Evaluation of Cardiovascular Functions during the Practice of Different Types of Yogic Breathing Techniques. International Journal of Yoga. 2021. Read 2026-10-22 (abstract).
  7. Nivethitha L, Mooventhan A, Manjunath NK, Bathala L, Sharma VK. Cerebrovascular hemodynamics during pranayama techniques. Journal of Neurosciences in Rural Practice. 2017. Read 2026-10-22 (abstract).
  8. Novaes MM, Palhano-Fontes F, et al. Effects of Yoga Respiratory Practice (Bhastrika pranayama) on Anxiety, Affect, and Brain Functional Connectivity and Activity: A Randomized Controlled Trial. Frontiers in Psychiatry. 2020. Read 2026-10-22 (abstract).
  9. Sadhana S, et al. Immediate Effect of Bhastrika pranayama on Critical Flickering Fusion Frequency among Healthy Volunteers: A Randomized Controlled Study. International Journal of Yoga. 2026. Read 2026-10-22 (abstract).
  10. Mütze C, Mitzinger D, Haller H. Effectiveness of pranayama for mental disorders: a systematic review and meta-analysis of randomized controlled trials. Frontiers in Psychiatry. 2025. Read 2026-10-22 (abstract).
  11. Sharma S, Bhandari SS, Malhotra V, Kuppusamy M, Kumar S, Dhakal M. Yoga and its risks: a systematic review of adverse events reported in case reports and case series. Journal of Integrative Medicine. 2026. Read 2026-10-22 (abstract).
  12. Pandit UN, Pakhale H, Bellare B. Protective Role of Moolabandha While Practicing Bhastrika and Kapalabhati by Women Vulnerable to Bladder Dysfunction: A Preliminary Ultrasound Study. International Journal of Yoga. 2019. Read 2026-10-22 (abstract).
  13. National Center for Complementary and Integrative Health (NCCIH). Yoga: What You Need To Know. 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.