What is Alternate Nostril Breathing?
Alternate Nostril Breathing, known in Sanskrit as Nadi Shodhana (nadi = “channel” or “flow” and shodhana = “purification”), is a foundational pranayama (breath control) practice in yoga primarily aimed at clearing and purifying the subtle channels of the mind-body organism, while bringing balance to the system as a whole. The practice involves breathing through one nostril at a time while closing the other nostril manually. In addition to opening the flow of energy along the nadis, this practice calms, purifies, and strengthens the nervous system and deepens self-awareness—excellent preparation for meditation.
Alternate nostril breathing meaning encompasses both its technical execution and its philosophical purpose: the practice aims to balance ida (the left, lunar, cooling energy channel) and pingala (the right, solar, heating energy channel), creating equilibrium between mental clarity and physical vitality. Usually, nadi-shodhana means a certain pranayama – alternate breathing with a breath hold after inhalation and sometimes after exhalation. In yoga and tantra, it’s the most common way to clear canals.
Unlike other breathwork techniques that primarily relax or energize, Nadi Shodhana is fundamentally about restoring harmony. It serves as both a purification practice and a preparatory technique for deeper meditative states, addressing the question of what is alternate nostril breathing from both physiological and energetic perspectives.
Origins & Lineage
Nadi Shodhana Pranayama which Indians call alternate nostril breathing traces its origin back through the centuries of ancient Indian tradition. This breathing technique exists within the yoga discipline and experts practiced it for thousands of years. The practice is documented in classical hatha yoga texts, most notably the Hatha Yoga Pradipika, a 15th-century Sanskrit manual.
For further reference, see the Hatha Yoga Pradipika, Chapter 2, Verses 1 to 20, by Swami Muktibodhananda of the Bihar School. The breath does not pass through the middle channel (suṣumnâ), owing to the impurities of the nâdîs. When the whole system of nâdîs which is full of impurities, is cleaned, then the Yogî becomes able to control the Prâṇa.
According to the Hatha Yoga Pradipika (2:5) and Gheranda Samhita (5:32), the yogi is ready to practice kumbhaka, breath retention, only after the nadis and chakras are purified. While some sources trace conceptual roots to Patanjali’s Yoga Sutras, which outline pranayama as a limb of yoga practice, the specific technique of alternate nostril breathing is most clearly codified in the hatha yoga tradition.
The practice has been transmitted through various lineages including the Nath tradition, which reveres Gorakshanath, and the Bihar School of Yoga, which has standardized contemporary instruction. The technique is also referenced in Ayurvedic texts as a method for balancing the doshas (constitutional energies).
How It’s Practiced
Alternate nostril breathing for beginners typically begins without breath retention. Choose a comfortable sitting position—either cross-legged on the floor (with a cushion or blanket to support the spine), or in a chair with your feet flat on the floor. Allow your spine to lengthen so that your back, neck, and head are erect throughout the practice.
Sit in a comfortable asana and make Mrigi Mudra. Gently close your right nostril with your thumb. Inhale through your left nostril, then close it with your ring-little fingers. Open and exhale slowly through the right nostril. Keep the right nostril open, inhale, then close it, and open and exhale slowly through the left. This is one cycle.
The hand position, called Vishnu Mudra, involves curling the index and middle fingers toward the palm while using the thumb to close the right nostril and the ring and little fingers to close the left. Nadi shodhana (as with most pranayamas) is best practiced on an empty stomach. The early morning is an ideal time.
Advanced variations incorporate kumbhaka (breath retention) between inhalations and exhalations. The classical 1:4:2 ratio is described in the Hatha Yoga Pradipika. This refers to the ratio of inhalation duration to retention duration to exhalation duration. Some schools begin with the left nostril, others with the right, depending on the desired effect and time of day.
Alternate Nostril Breathing Today
Contemporary seekers encounter alternate nostril breathing in multiple contexts. It is taught in virtually all hatha, vinyasa, kundalini, and iyengar yoga classes as either a preliminary practice or a dedicated pranayama session. The technique appears in secular mindfulness-based stress reduction (MBSR) programs, integrative medicine clinics, and breathwork facilitator trainings.
Forty-four randomized controlled trials were included in this review paper. These studies evaluated the effects of alternate nostril breathing on parameters of the autonomic nervous system, cardiopulmonary system, cognitive functioning, problem solving and motor memory retention. A 2017 review of all the studies on alternate nostril breathing found that doing it regularly was good for the heart, lungs, and brain.
Yoga studios typically offer nadi shodhana instruction within pranayama workshops or as part of meditation intensives. Online platforms provide guided audio sessions ranging from five to thirty minutes. Retreat centers in Rishikesh, the Sivananda ashrams worldwide, and dharma centers incorporate the practice into daily schedules. Apps like Insight Timer and breathwork programs often feature alternate nostril breathing modules.
The practice has gained clinical attention: A 4-week alternate-nostril breathing exercise could be an adjunctive modality to improve the depression component of the hospital anxiety and depression scale, rates of pulsation and respiration, anxiety component of hospital anxiety and depression scale, blood pressure, intraocular pressure.
Common Misconceptions
Alternate nostril breathing is not a quick fix for chronic anxiety disorders or a replacement for medical treatment. While research shows benefits for stress reduction and autonomic balance, it requires consistent practice—typically daily for several weeks—to produce measurable effects.
It is not the same as simply breathing slowly. The specific pattern of nostril alternation and the engagement of hand mudra create distinct neurophysiological effects that differ from paced breathing through both nostrils. Some practitioners mistakenly believe the technique should produce immediate dramatic sensations; in reality, effects are often subtle and cumulative.
The practice should not be forced. Straining to hold the breath or maintaining uncomfortable hand positions defeats the purpose of nervous system regulation. Those with severe nasal congestion, sinus infections, or recent nasal surgery should postpone practice until symptoms resolve.
Alternate nostril breathing is not exclusive to advanced yogis. It is balancing for all three doshas and is a suitable practice for most anyone. However, It should not be taught to complete beginners of yoga. Generally speaking, alternate nostril breathing should be taught to students who have practiced asanas for a considerable time on a regular basis. This reflects traditional progression, though modern adaptations often introduce simple versions earlier.
How to Begin
For those new to alternate nostril breathing, begin with the basic pattern without breath retention. Practice five to ten rounds once daily, preferably in the morning before breakfast. Increase gradually to twenty rounds over several weeks.
Richard Rosen’s The Yoga of Breath provides clear instructions for beginners. B.K.S. Iyengar’s Light on Pranayama offers detailed technical guidance with photographs. For online instruction, search “nadi shodhana tutorial” on Yoga International or watch demonstrations by teachers trained in Sivananda or Bihar lineages.
Join a beginner pranayama class at a local yoga studio where an instructor can correct hand position and breathing rhythm. Look for hatha yoga or iyengar yoga classes that dedicate time to breathwork instruction. Some studios offer pranayama-only sessions separate from asana practice.
Start with consistency rather than duration. Five minutes daily yields better results than thirty minutes once weekly. Evidence suggests that people who regularly practice alternate nostril breathing benefit most from it. Yoga International suggests twice a day. Once the basic pattern feels natural, consider studying with a qualified pranayama teacher who can introduce breath retention and advanced ratios safely.