Alternate Nostril Breathing
Alternate nostril breathing — known in yogic tradition as Nadi Shodhana, meaning channel purification — is one of the oldest and most widely practiced pranayama techniques, with roots in classical yoga texts that predate modern breathwork by centuries. It involves breathing alternately through each nostril while using the fingers to close the other, creating a rhythmic pattern that research has associated with balancing activity between the left and right hemispheres of the brain, reducing anxiety, lowering blood pressure, and improving cardiovascular function. Of the calming techniques in this section, it’s the one with the most substantial research base and the longest traditional pedigree.
The mechanism behind its effects is not fully understood, but several explanations have been proposed. Each nostril has a slightly different relationship to the autonomic nervous system — right nostril breathing tends to be more activating, left nostril breathing more calming — and the alternating pattern may produce a balancing effect across both branches. The slow, controlled rhythm that the technique requires also activates the same extended exhale parasympathetic mechanism as the other calming techniques in this section, which likely accounts for a significant portion of the effect regardless of the nostril-specific mechanisms.
I find it particularly useful as a transition practice — between a demanding period of work and something that requires a different quality of presence, or as part of a pre-meditation ritual that settles the mind before sitting. The hand position and the alternating rhythm give the mind something concrete to follow, which makes it easier to disengage from mental chatter than techniques that involve simply watching the breath.
How to practice
Sit comfortably with a tall spine. Bring the right hand to the face — the thumb will close the right nostril, the ring finger will close the left. The index and middle fingers can rest lightly on the forehead or fold toward the palm.
Close the right nostril with the thumb and inhale slowly through the left nostril for a count of four.
At the top of the inhale, close both nostrils briefly — one to two counts — then release the thumb and exhale slowly through the right nostril for a count of six to eight.
Inhale through the right nostril for a count of four.
Close both nostrils briefly at the top, then release the ring finger and exhale through the left nostril for a count of six to eight.
That completes one full cycle. Continue for five to ten cycles as a starting practice, building to ten to twenty cycles or five to ten minutes with consistent practice.
Notes
The extended exhale ratio is maintained throughout — inhale shorter than exhale — which keeps the parasympathetic activation consistent across the alternating pattern.
If significant nasal congestion makes alternate nostril breathing difficult, extended exhale breathing or the physiological sigh are more accessible alternatives until the congestion clears.
Some traditions include breath holds at the top and bottom of each cycle — this is an advanced variation that adds complexity and intensity to the practice. Begin without holds and introduce them only after the basic pattern is fully comfortable.