Nāḍī Śodhana

नाड़ी शोधन प्राणायाम

In through one nostril, out through the other, then back the other way. Nothing is held.

How to keep the time

How long the out-breath is

How long the in-breath is

Why this works

How it is done

One hand does the work. The other rests on the knee.

The right hand, seen as in a mirror: the thumb for the right nostril, the ring finger for the left.

  1. Sit cross-legged or in vajrāsana, the spine upright, the shoulders loose, the eyes gently closed.
  2. The left hand rests on the left knee, the thumb and first finger touching. The right hand folds its first two fingers in, leaving the thumb and the ring finger free: the thumb closes the right nostril, the ring finger the left.
  3. Close the right nostril with the thumb. Breathe in slowly through the left.
  4. Close the left with the ring finger, lift the thumb, and breathe out through the right.
  5. Breathe in through the right. Close it with the thumb, lift the ring finger, and breathe out through the left. That is one cycle.
  6. Ten cycles. The breath smooth and unbroken, never forced. Keep your attention on the air, and on the moment it changes sides.

Before you begin

Thirty seconds. Then we start.

  • Do not practise if you have uncontrolled high blood pressure, severe respiratory illness, or have had recent heart trouble. Ask a doctor first.
  • If you feel dizzy, breathless or unwell at any point, stop and breathe normally. Nothing is lost. Start again when settled.
  • Empty stomach, or at least two hours after eating.
  • Nothing is held. If a long out-breath leaves you snatching the next in-breath, choose a shorter one. Smooth beats long, every time.
  • This supports treatment. It does not replace it.

Ten cycles.

Left and right, ten times each way. The breath went where you sent it.

The reasoning

Why this works

Slow, even breath is the common ground of every practice in this phase. Nāḍī śodhana adds one thing: the breath has to be steered, side by side, and steering it keeps the attention on it.

The heart and the blood pressure

Alternate nostril breathing lowered systolic blood pressure while performance on a vigilance test improved. Four weeks of it improved heart and lung measures in those who practised it.

Telles 2017, crossover, PMID 29284770. Jahan 2021, controlled, PMID 34213471.

The mind

In randomised sessions it lowered theta and beta activity in a pattern the authors read as greater calmness. Practised with bhrāmarī, it shortened the time taken to answer a sound in people with high blood pressure.

Telles 2017, randomised sessions, PMID 28738882. Upadhyay 2023, randomised, PMID 37499590.

What we do not claim

None of these studies was in people coming off opium. We use the practice because withdrawal takes the slow, regulated breath out of reach for a while, and this is one of the protocol's ways of reaching it again. Our own results are published separately and are not claimed here.

Slow breathing and heart rate variability: Laborde 2022, meta-analysis, PMID 35623448. Heart rate variability in precipitated withdrawal: Levin 2019, PMID 31513980.

← The other practices of the breath

the first ringa breath · a posture