Pranayama

• 1. Introduction

  ›

  Pranayama asks a question most people never think to ask: what happens when you stop breathing on purpose? The Sanskrit word sits at the heart of Hindu yogic tradition, carrying meanings that range from simple breath control to the complete suspension of breathing itself. Patanjali, the ancient Rishi who codified yoga philosophy, placed pranayama as the fourth of eight limbs in his Yoga Sutras. Yogananda put it plainly: the real meaning of pranayama, according to Patanjali, is the gradual cessation of breathing, the discontinuance of inhalation and exhalation. That definition would surprise most people who have taken a modern yoga class. The gap between the classical understanding and what happens on contemporary studio floors turns out to be wide, and tracing it reveals how an ancient practice travels through time, picking up new meanings at every stop.

• 2. A Word With Many Meanings

  ›

  Sanskrit scholars have long disagreed on how to parse the compound prāṇāyāma. Macdonell defines the whole compound as the suspension of breath, treating the second element as āyāma. Monier-Williams takes a more technical approach, reading the word as referring to three breath-exercises: drawing the breath inside, retaining it, and discharging it. V. S. Apte arrives at yet another angle, deriving the second element from roots meaning restrain, control, stopping. Ramamurti Mishra offers a metaphysically expansive reading: expansion of individual energy into cosmic energy, glossing the compound as energy plus expansion. None of these definitions simply means breathing slowly. What they share is the idea that prana, the life energy associated with the breath in classical yoga, is something to be deliberately shaped, withheld, or enlarged. The disagreement among lexicographers is itself a clue that pranayama has never been a single, fixed technique.

• 3. Roots in Sacred Texts

  ›

  Verse 4.29 of the Bhagavad Gita describes practitioners who offer the movement of the outgoing breath into the incoming, and the incoming breath into the outgoing, remaining in trance and stopping all breathing. The verse frames breath control as a form of sacrifice, analogous to offering food into fire. Patanjali takes up the subject in the Yoga Sutras, addressing pranayama in verses 2.49 through 2.51 and reserving verses 2.52 and 2.53 for its benefits. He also mentions it earlier, in verse 1.34, as a method aimed at stabilizing the mind. The two primary techniques he names are pracchardana, the exhalation of air through the nostrils, and vidharana, the controlled restraint of breath. Scholars note that Patanjali does not fully elucidate the nature of prana, and that the theory and practice of pranayama seem to have undergone significant development after his time. B. K. S. Iyengar, one of the most prominent yoga teachers of the twentieth century, advised that pranayama should be undertaken only when one has a firmly established yoga practice, and then only under the guidance of an experienced Guru.

• 4. Hatha Yoga's Arsenal

  ›

  The 15th century Hatha Yoga Pradipika brought pranayama into a new framework, cataloguing a range of named techniques alongside body locks called Bandhas. Kumbhaka, the retention of breath, sits at the center of this tradition. Theos Bernard described its ultimate aim as kevala kumbhaka, the total suspension of breathing, causing the mind to swoon. The Pradipika also names techniques that survive in recognizable form today: Nadi Shodhana, the alternating of breath through the nostrils (also known as Anuloma Viloma); Bhastrika, the rapid bellows breath; Kapalabhati, translated as skull-shining breath and classified as a purification practice; Surya Bhedana, the sun-piercing breath; and Bhramari, which involves a humming sound described as buzzing like a bee. Ujjayi, translated as Victorious Breath, is listed as a modern technique used in Ashtanga vinyasa yoga. Sitali involves breathing through a rolled tongue. Each technique carries its own physical and energetic rationale within the Hatha system, and the variety shows how far pranayama extends beyond any single method.

• 5. Science Meets the Subtle Body

  ›

  In 1924, the yoga guru Swami Kuvalayananda began what may be the first experimental study of pranayama, initiating decades of physiological research that would produce both data and contradiction. His core question was whether pranayama developed the nadi channels of the subtle body or simply exchanged gases. To answer it, he measured carbon dioxide removal rates and, later, oxygen consumption. The anthropologist Joseph Alter describes this effort as an accidental confusion in meaning between yoga and medicine, two domains with different ways of knowing. By 1929 Kuvalayananda was studying pranayama's effects on the respiratory system directly. A 1956 study he co-authored with Karambelkar examined changes in urine acidity following prolonged bhastrika pranayama. A 1979 study by Kesari, Vaishawanar, and Deshkar looked at the effect of asana and pranayama practice on the clearance of urea and creatinine from the body. Alter notes that these experiments nearly all studied anatomical, physiological, or biochemical variables, though the work was driven by what he calls an ontological question about the nature of nature. Kuvalayananda and his colleagues at Kaivalyadhama viewed biological variables as secondary effects of a meta-material power inherent in yoga. A 2018 systematic review by Andrea Zaccaro and colleagues surveyed 2,461 research articles on pranayama and breath control, but only 15 met the eligibility criteria requiring voluntary control of breathing with a specific focus on pranayama. The review found interesting albeit limited evidence of a relationship between physiological parameters and psychological or behavioral outcomes in healthy subjects using slow breathing techniques.

• 6. Buddhism and Breath

  ›

  Before his enlightenment, the Buddha practiced a meditative technique involving pressing the palate with the tongue and forcibly restraining the breath. The Pali Buddhist Canon describes this as both extremely painful and not conducive to enlightenment. The Buddha's mature teaching took a different approach: the Anapanasati Sutta incorporates moderate modulation of breath length as preparation for concentration, a practice described in commentarial literature as appropriate for beginners. Some Buddhist teachings note that breathing stops as a side effect of the fourth jhana, but this is not the result of deliberate effort. Later Indo-Tibetan developments picked up practices closer to Hindu forms. The Buddhist text known as the Amritasiddhi, traceable to the 11th century, teaches three bandhas in connection with yogic breathing. Tibetan Buddhist exercises such as the nine breathings of purification, also called the Ninefold Expulsion of Stale Vital Energy in Tibetan, incorporate visualizations alongside alternate nostril breathing. In the Nyingma tradition of Dzogchen, these practices appear within a textual cycle known as The Oral Transmission of Vairotsana.

• 7. Modern Drift

  ›

  The yoga scholar Andrea Jain argues that pranayama was marginal to the most widely cited sources before the twentieth century, and that earlier breathing practices were dramatically unlike modern ones. In texts like the Bhagavad Gita and the Yoga Sutras of Patanjali, pranayama pointed toward complete cessation of breathing, a point she supports by citing Johannes Bronkhorst's 2007 scholarship. What happened in modern yoga as exercise is nearly the opposite: Sharath Jois, grandson of Pattabhi Jois who founded Ashtanga vinyasa yoga, taught a system in which the breath is coordinated with the vinyasa transition movements between asanas. Breathing becomes a tool for rhythm and presence in movement rather than a practice of stillness and suspension. The word pranayama persists across this shift, but the intention it names has changed substantially. That gap between classical cessation and modern synchronization is the distance yoga traveled through the twentieth century, and it is a distance that researchers like Kuvalayananda began to measure, in their own way, starting in 1924.