Most pranayama practices are designed to energize, warm, or calm the body — but two ancient yogic breathing techniques do something quite different: they actively cool you down. Sheetali and Sitkari pranayama, two closely related cooling breathwork techniques, have been used in yoga for thousands of years to reduce body temperature, calm the nervous system, and soothe inflammation. In the heat of summer, after intense exercise, or simply when you’re feeling hot, irritable, or overwhelmed, these practices offer immediate, tangible relief.
This guide explains how both techniques work, the science behind their cooling effects, step-by-step instructions for each, and how to weave them into your existing yoga and breathwork practice.
What Is Cooling Breathwork?
In Ayurvedic philosophy, the body is governed by three doshas — Vata, Pitta, and Kapha. Pitta is the dosha associated with fire, heat, transformation, and intensity. When Pitta becomes aggravated — through summer heat, spicy food, excessive exercise, or emotional stress — symptoms include overheating, inflammation, irritability, acid reflux, and skin flare-ups.
Cooling pranayama techniques are specifically designed to balance excess Pitta. By drawing air across moist mucous membranes in the mouth, they create an evaporative cooling effect — similar to how sweating cools the body, but delivered directly to the breath entering your lungs. This cooled air then lowers the temperature of the blood circulating through the brain and core, producing a measurable drop in body temperature and a calming of the nervous system.
Sheetali Pranayama: The Cooling Breath
Sheetali comes from the Sanskrit word sheetal, meaning “cool” or “calming.” It is practiced by curling the tongue into a tube shape and inhaling through the tube, drawing cool air across the moist tongue before it enters the lungs.
How to Practice Sheetali Pranayama
- Sit comfortably in a cross-legged position, on a chair, or in any seated posture where your spine can be tall and relaxed.
- Close your eyes and take a few normal breaths to settle.
- Open your mouth and extend your tongue slightly past your lips.
- Curl the sides of your tongue upward to form a tube or “straw” shape. (Note: the ability to curl the tongue is genetic. If you cannot curl it, Sitkari — described below — is the perfect alternative.)
- Inhale slowly and deeply through the tongue-tube, as if sipping cool air through a straw. Notice the cool, moist sensation on your tongue and the back of your throat.
- At the top of the inhalation, close your mouth and exhale slowly through your nose.
- This completes one round. Begin with 8–10 rounds and gradually increase to 20 rounds over several weeks.
When to Practice Sheetali
Sheetali is ideal when you need rapid cooling: after outdoor exercise in summer heat, before a high-pressure meeting when you’re feeling hot and agitated, during hot flushes associated with perimenopause, or as a wind-down practice after an energetic morning yoga flow such as the morning energizing breathwork sequence.
Sitkari Pranayama: The Hissing Breath
Sitkari produces the same cooling effects as Sheetali but is practiced differently — making it accessible to the majority of people who cannot curl their tongue. The name comes from the “sss” or hissing sound created by the inhalation.
How to Practice Sitkari Pranayama
- Sit comfortably with a tall spine and soft eyes or closed eyes.
- Press your upper and lower teeth lightly together and part your lips, exposing the teeth.
- Inhale slowly through the gaps between your teeth, allowing the air to hiss as it passes across your moist inner lips and tongue. You’ll hear a soft “ssss” sound and feel a strong cooling sensation.
- At the top of the inhalation, close your lips and exhale slowly through your nose.
- Begin with 8–10 rounds. Those with sensitive teeth may find cold air briefly uncomfortable — in this case, reduce the speed of inhalation to a very slow, gentle draw.
Sitkari vs Sheetali: Which Is Better?
Both practices deliver essentially identical benefits. The choice comes down to anatomy: if you can curl your tongue, Sheetali is the traditional first choice. If you cannot, Sitkari is equally effective and some practitioners actually prefer its stronger cooling sensation. You can also alternate between the two in a single practice session.
The Science Behind Cooling Pranayama
Modern research has begun to validate the cooling effects described in ancient yogic texts. A 2021 study published in the International Journal of Yoga found that 15 minutes of Sheetali/Sitkari practice produced a statistically significant reduction in core body temperature, heart rate, and systolic blood pressure in participants. Another study found reduced cortisol levels and improved scores on anxiety measures after a 4-week Sheetali program.
The physiological mechanism involves the hypothalamus — the brain’s temperature regulator. Cool air inhaled through the mouth triggers thermoreceptors in the palate and throat that send signals to the hypothalamus, prompting vasodilation and a lowering of the set-point temperature. The slow, controlled breathing also activates the vagus nerve, shifting the autonomic nervous system from sympathetic (fight-or-flight) to parasympathetic (rest-and-digest) dominance.
Benefits of Regular Cooling Breathwork Practice
Beyond simple temperature reduction, regular practice of Sheetali and Sitkari yields a range of benefits that become more pronounced over weeks of consistent practice:
- Reduced anger and irritability: The Pitta-pacifying effect directly calms the “fiery” emotional states associated with excess heat in the system
- Lower blood pressure: Multiple studies have confirmed that cooling pranayama produces modest but meaningful reductions in both systolic and diastolic pressure
- Improved digestion: By calming Pitta, these practices can reduce acid reflux, heartburn, and inflammation in the digestive tract
- Better sleep quality: Practiced in the evening, cooling breathwork lowers the core body temperature drop that the body naturally seeks before sleep, potentially helping you fall asleep faster
- Reduced skin inflammation: Practitioners with Pitta-aggravated skin conditions (rosacea, heat rash, acne) often report improvement with regular practice
- Enhanced focus: The calming of an overheated, agitated mind creates mental clarity and improved concentration
Contraindications and Cautions
Sheetali and Sitkari are among the gentlest pranayama practices, but a few precautions apply:
- Avoid in cold or damp environments: Practicing cooling breathwork in a cold room or outdoors in winter can excessively lower body temperature and aggravate respiratory conditions
- Asthma and respiratory conditions: Cold air can trigger bronchospasm. If you have asthma, practice in a warm room and reduce your inhalation rate significantly, or omit these techniques on days when your airways are reactive
- Sensitive teeth: Sitkari in particular may cause brief discomfort for those with dental sensitivity. Practice slowly and if discomfort is significant, stick with Sheetali
- Low blood pressure: Because these practices can lower blood pressure further, those with hypotension should proceed with caution and ideally consult a yoga therapist
How to Integrate Cooling Breathwork Into Your Yoga Practice
Cooling pranayama works beautifully as both a standalone practice and as a complement to your asana and meditation work. Here are several ways to integrate it:
Post-Workout Cooldown
After an energetic yoga session, run, or cycling ride, take 5 minutes in a comfortable seated position and practice 15–20 rounds of Sheetali or Sitkari. The physical cooling effect helps bring heart rate and core temperature down more quickly than passive rest alone.
Midday Practice on Hot Days
In summer, schedule a dedicated 10-minute cooling breathwork practice around noon — the peak of Pitta time in Ayurveda. Sit in the shade or a cool room and alternate 10 rounds of Sitkari with 5 rounds of natural, easy breathing for a complete cycle. This single habit can meaningfully reduce summer-related fatigue and irritability.
As Part of a Pranayama Sequence
If you have an established pranayama practice, cooling techniques work well in sequence after more activating practices. For example: begin with 5 minutes of Kapalabhati to clear the sinuses and energize, transition to Nadi Shodhana for 5 minutes to balance the hemispheres, and conclude with 5–10 rounds of Sheetali for a cooling, calming finish. You can explore the full range of calming pranayama techniques in our guide on pranayama for anxiety and nervous system regulation.
Evening Wind-Down
Practiced before bed, cooling breathwork pairs beautifully with the calming yoga sequences for insomnia we’ve covered elsewhere on the site. Together, they create a powerful pre-sleep routine that lowers body temperature, calms the mind, and prepares the nervous system for deep rest.
A Complete 15-Minute Cooling Breathwork Session
Use this sequence on hot days, after exercise, or whenever you need to calm down quickly:
- Natural breath awareness — 2 minutes: Sit comfortably and simply observe your natural breath without changing it. Notice where you feel heat or tension in the body.
- Extended exhalation breathing — 3 minutes: Inhale for 4 counts, exhale for 8 counts through your nose. This activates the parasympathetic response before introducing the cooling techniques.
- Sitkari pranayama — 5 minutes: 20 rounds, pausing for 3–4 natural breaths between each set of 5.
- Sheetali pranayama (if able) — 3 minutes: 10–12 rounds with the curled tongue, following the same pattern.
- Rest in stillness — 2 minutes: Sit quietly with natural breath. Notice the temperature shift in your body, the quieting of your mind, the softening of any tension.
The Takeaway
Sheetali and Sitkari are among yoga’s most underappreciated gifts: simple, immediate, and profoundly effective. Whether you’re dealing with summer heat, emotional overwhelm, post-exercise inflammation, or simply a Pitta constitution that runs hot, five minutes of cooling breathwork can shift your physical and mental state in a genuinely perceptible way. Start with Sitkari — it requires no special tongue anatomy, takes less than a minute to learn, and delivers results from the very first breath.
