Bhastrika, the “bellows breath”, is a forceful breathing technique catalogued in the Hatha Yoga Pradipika 2.59–67 as one of the eight retentions (kumbhakas) prescribed for advanced pranayama. Unlike Kapalbhati, which is a cleansing technique with active exhalation and passive inhalation, Bhastrika uses active forceful inhalation and active forceful exhalation, both driven by the abdomen and diaphragm. The Gheranda Samhita 5.70–72 describes the same practice and credits it with awakening Kundalini and breaking the granthis (psychic knots). Typical daily practice runs three rounds of 20 to 60 strokes, performed seated, ideally before sunrise on an empty stomach.
The classical description
The Hatha Yoga Pradipika 2.61 compares the practice to the bellows used by a blacksmith: “Rapid expulsion and inhalation of breath like the bellows of a blacksmith, this is called Bhastrika by the experts in yoga”. The verse continues with the prescription that the practitioner should end each round with a deep inhalation, a breath retention (kumbhaka) with the three bandhas (mula, uddiyana, jalandhara), and then a slow controlled exhalation. The retention at the end is what classifies Bhastrika as a pranayama rather than a shatkarma.
How to practise Bhastrika correctly
- Sit in Sukhasana, Siddhasana or Padmasana with the spine erect and the hands on the knees.
- Begin with a few rounds of deep diaphragmatic breathing to warm up.
- Start the strokes: forceful inhalation through both nostrils, then forceful exhalation through both nostrils. Both phases are driven by the abdomen.
- Begin at 20 strokes per round, building over four to six weeks to 60 strokes per round.
- At the end of each round, inhale fully, hold the breath (antar kumbhaka) for 10 to 20 seconds with the three bandhas, then exhale slowly through the nose.
- Rest with normal breathing for 30 to 60 seconds. Three rounds is a complete session.
The shoulders, neck and face stay relaxed. The chest expands and contracts visibly; the diaphragm and the abdominal wall do most of the work. The stroke rate is slower than Kapalbhati, typically 30 to 60 strokes per minute rather than 60 to 120.
Bhastrika and Kapalbhati side by side
- Inhalation: Kapalbhati passive; Bhastrika active.
- Exhalation: Both active.
- Rate: Kapalbhati 60 to 120 strokes per minute; Bhastrika 30 to 60.
- Kumbhaka: Kapalbhati none; Bhastrika ends each round with retention and the three bandhas.
- Classical category: Kapalbhati is a shatkarma (cleansing); Bhastrika is a pranayama.
Documented and traditional effects
The Hatha Yoga Pradipika 2.65–67 credits Bhastrika with three effects: removing diseases of vata, pitta and kapha, generating internal heat (jatharagni), and awakening Kundalini through the central channel. The Gheranda Samhita repeats the Kundalini claim. Modern physiological research on Bhastrika tends to find:
- Increased heart rate and blood pressure during the practice, followed by recovery to baseline within minutes.
- Improved diaphragmatic strength and vital capacity over weeks of regular practice.
- Activation of the parasympathetic system during the post-practice recovery phase, with measurable drops in heart rate and cortisol.
The classical claim of internal heat generation is consistent with the measured rise in metabolic activity during the practice, although the Kundalini-specific claims are tradition-specific and not testable in the modern clinical sense.
Contraindications and precautions
The contraindications for Bhastrika are stricter than for most pranayamas due to the forceful inhalation and the breath retention:
- Hypertension, heart disease, recent stroke, or any cardiac condition.
- Pregnancy at any stage.
- Detached retina, glaucoma, recent eye surgery.
- Recent abdominal or thoracic surgery, hernia, gastric ulcer.
- Epilepsy or seizure history.
- Severe asthma or COPD where forced inhalation aggravates symptoms.
- Active vertigo.
For what it’s worth, Bhastrika is in the category of pranayamas where the classical sources specifically advise teacher-mediated learning. The combination of forceful breath and kumbhaka with the bandhas is genuinely a different intensity from the slower nadi-balancing techniques like Anulom Vilom; getting the bandhas wrong is the kind of error that compounds over time rather than self-correcting.
Common questions
Can Bhastrika be practised every day?
Yes, in a graduated daily practice. Three rounds of 30 to 60 strokes is a standard daily ceiling for established practitioners. Higher intensities (longer rounds, more rounds, longer kumbhakas) are typically reserved for retreats or for advanced students working with a teacher. Daily practice at moderate intensity is what most schools recommend.
When does Bhastrika fit in a sequence?
The standard order in the Bihar School of Yoga sequence is Kapalbhati first, then Bhastrika, then Nadi Shodhana, then a sitting meditation or Bhramari. Bhastrika sits in the middle of the sequence because it is the most stimulating and the recovery period naturally leads into the calmer techniques. Some teachers reverse the Kapalbhati and Bhastrika order; both sequences are defended in the tradition.
What is the role of the three bandhas?
At the end of each Bhastrika round, the classical instruction is to apply the three bandhas during the kumbhaka: mula bandha (root lock, pelvic floor contraction), uddiyana bandha (abdominal lock, drawing the navel toward the spine), and jalandhara bandha (chin lock, throat closed against the upper sternum). The bandhas redirect the energy generated by the rapid breathing into the central channel (sushumna) per the classical model. Beginners often learn the kumbhaka without the bandhas first and add them later.
How is Bhastrika different from box breathing?
Box breathing (4-4-4-4 inhale-hold-exhale-hold) is a slow, symmetrical practice from modern military and athletic settings. Bhastrika is fast, forceful, and ends with an asymmetric long retention. Box breathing aims to calm and steady; Bhastrika aims to stimulate and then settle. They serve different purposes; both are useful, neither replaces the other.
One limitation worth noting
The exact stroke count, breath ratios and retention durations vary between schools. The Bihar School recommends 30 to 60 strokes per round; the Krishnamacharya lineage and the Iyengar lineage tend to recommend lower counts and longer recoveries. The Hatha Yoga Pradipika itself does not specify exact numbers, only that the practitioner should not strain. Anyone reading a single source and treating its numbers as definitive is overreading a tradition that has always been flexible about specifics. The Kundalini-awakening framing is a tradition-internal claim; the cardiovascular and respiratory effects are testable and modest.
See the Wikipedia entry on Bhastrika and the broader overview of pranayama for further background.
