If you have ever seen someone roll the muscles of their stomach in a wave-like motion, you have witnessed Nauli, one of the most striking practices in yoga. Despite the name “Nauli breathing,” it is actually a breath-retention and abdominal-control technique, not a breathing pattern. This guide explains exactly what Nauli is, how it works, its benefits, and the precautions you must respect before trying it.
What Is Nauli?
Nauli (or Nauli Kriya) is an advanced yogic cleansing practice. It is one of the six shatkarmas, the traditional purification techniques of hatha yoga. In Nauli, you isolate and roll the abdominal muscles, specifically the rectus abdominis, in a churning, wave-like motion while holding your breath out.
It is built on top of two foundational techniques:
- Uddiyana Bandha: the “upward abdominal lock,” where the belly is drawn up and in after a full exhale.
- Breath retention (external): holding the breath out while the abdomen is hollowed.
Because it combines breath control with deep muscular isolation, Nauli sits at the crossroads of pranayama (breath work) and kriya (cleansing action).
How Nauli Works (The Mechanics)
After exhaling completely and holding the breath out, you create a “mock inhale” by expanding the rib cage without letting air in. The vacuum this creates draws the abdominal organs upward and inward (this is Uddiyana Bandha). From there, by selectively contracting the central abdominal muscles, you make them stand out and then roll them side to side.
The 4 Types of Nauli
- Madhyama Nauli: central isolation: the central muscles bulge forward in a vertical line.
- Vama Nauli: left isolation: the muscles roll to the left side.
- Dakshina Nauli: right isolation: the muscles roll to the right.
- Nauli Kriya (rolling): combining all three into a continuous churning wave from side to side.
Beginners work through them in order, mastering Uddiyana Bandha first, then Madhyama, before attempting the side rolls and the full churn.
Benefits of Nauli
- Improves digestion. The massaging, churning action stimulates the digestive organs and peristalsis, which can ease constipation and bloating.
- Builds deep core strength. It develops remarkable control and tone in the deep abdominal muscles.
- Supports detoxification. Traditionally used to stimulate the abdominal organs and aid natural cleansing.
- Strengthens the breath. The retention element improves breath control and prepares you for deeper pranayama. Explore more in our guide to breathing in yoga.
- Heightens body awareness. Few practices build such fine control over muscles most people cannot consciously move.
How to Practice Nauli (Step by Step)
Important: Nauli is an advanced practice. Learn it from a qualified teacher, and practice on an empty stomach, ideally in the morning.
- Stand with feet shoulder-width apart, knees slightly bent, hands on your thighs.
- Exhale completely, emptying the lungs, then hold the breath out.
- Perform a mock inhale: expand the chest without taking in air. Your abdomen will hollow and lift (Uddiyana Bandha).
- Contract the central abdominal muscles so they bulge forward (Madhyama Nauli).
- Once comfortable, isolate the left, then the right.
- Combine into a slow rolling motion, the churning wave.
- Release, relax the belly, and inhale gently. Rest before the next round.
Start with 1 to 3 rounds and build slowly over weeks.
Precautions: Who Should Not Practice Nauli
Avoid Nauli if you:
- Are pregnant or trying to conceive.
- Have a hernia, ulcer, or recent abdominal surgery.
- Have heart disease or high blood pressure (it raises heart rate).
- Are experiencing constipation, diarrhea, acid reflux, or menstruation.
Always practice on an empty stomach, with no food for at least 3 to 4 hours beforehand.
Where Nauli Fits in Your Practice
Nauli pairs naturally with breath work and core-focused yoga. If you are newer to the breath side, start with foundational yoga breathing and Pilates breathing techniques, then build flexibility and core control through a regular yoga flexibility practice. To understand where cleansing kriyas sit within yoga as a whole, read the 8 limbs of yoga.
What to Wear for Nauli and Pranayama
Nauli requires an unrestricted abdomen, so avoid tight waistbands that compress the belly. Choose soft, breathable yoga wear (or men’s yoga) with a comfortable, non-digging waistband, and practice on a stable yoga mat. Supportive wellness props help with the seated breath work that often accompanies kriya practice.
Frequently Asked Questions
Is Nauli a breathing exercise?
Not exactly. It is a cleansing kriya built on breath retention and abdominal control. The breath is held out while you move the abdominal muscles.
How long does it take to learn Nauli?
Most people need weeks to months. Master Uddiyana Bandha first, then central isolation, before the side rolls and full churning motion.
Is Nauli safe?
For healthy practitioners it is safe when learned properly and done on an empty stomach. It is not suitable during pregnancy, menstruation, or with certain medical conditions. Learn from a qualified teacher.
