Alternate nostril breathing, known in yoga as nadi shodhana pranayama ('channel-purifying breath'), is a technique in which you breathe through one nostril at a time, using your fingers to gently close the other. It is one of the most widely practiced calming exercises in the yogic tradition.
Traditional practice uses the right hand in vishnu mudra: fold the index and middle fingers toward the palm, leaving the thumb free to close the right nostril and the ring finger (supported by the pinky) to close the left. Rest your left hand on your knee, sit tall, and keep the pressure light. You are gently sealing the nostril, not pinching it. If the mudra feels awkward, simply using the thumb and ring finger works fine.
Close the right nostril with your thumb and inhale slowly through the left. Then close the left nostril with your ring finger, release the thumb, and exhale through the right. Inhale through the right, switch again, and exhale through the left. That completes one round. Continue for five to ten rounds, keeping inhales and exhales slow, smooth, and equal in length. Always switch sides after the inhale, never in the middle of a breath.
Practitioners report a distinctive settling effect: a quieter mind, a slower heart rate, and a sense of balance that makes nadi shodhana a classic preparation for meditation. In yogic theory the technique balances the ida and pingala nadis, the left and right energy channels. Physiologically, the slow nasal breathing it enforces activates the parasympathetic nervous system, and small studies have measured reductions in blood pressure and heart rate after regular practice.
Several small trials report improved attention, lower perceived stress, and modest blood pressure reductions after weeks of alternate nostril practice, and some EEG studies note changes in hemispheric activity. However, most studies are small, short, and lack rigorous controls, so popular claims about 'balancing brain hemispheres' remain speculative. The most defensible conclusion is that nadi shodhana is a reliable way to slow the breath, and slow breathing itself has well-documented calming effects.
Nadi shodhana works well in the morning to start the day centered, before meditation to settle the mind, or in the evening to downshift, though it is gentle enough for any moment you need calm focus. Five minutes is plenty for most people. If you want a hands-free alternative with the same slow, even rhythm, DeepBreathe's guided sessions pace your inhales and exhales with voice prompts so you can keep your eyes closed throughout.
The most frequent errors are breathing too forcefully, rushing the pattern, and pressing the nostrils hard enough to distort the nose. The breath should stay silent and unhurried. Skip the practice when one nostril is fully blocked by congestion, and avoid adding long breath retentions until the basic pattern feels effortless. As with any slow-breathing technique, stop if you feel dizzy and let your breathing return to normal before continuing.
