The Breathing Cheat Sheet

The Encyclopedia of Breathing Techniques

The cheat sheet above covers what you actually need for daily practice. This section is for completeness: the full landscape of breathing techniques you may encounter, with honest assessment of what each one does, what the evidence shows, and where the harms sit.

Some techniques here are extremely well-evidenced. Some are traditional practices with limited but suggestive research. Some are popular branded programs with little to no primary evidence supporting their specific claims. The framing under each entry tells you which is which.

Part 1: Buteyko-Tradition Techniques

The Buteyko method, developed by Ukrainian physician Konstantin Buteyko in the 1950s, focuses on reducing breathing volume to build CO2 tolerance and address chronic hyperventilation. The asthma evidence base is the strongest non-pharmacological evidence for any breathing tradition.

Control Pause (BOLT): Diagnostic

A self-administered measure of breathing pattern function and CO2 tolerance.

Technique:

1. Rest for 10 minutes to stabilize breathing.
2. Sit upright. Place a stopwatch nearby.
3. Pinch both nostrils. Exhale softly through the mouth to a natural conclusion.
4. Start the timer. Hold your breath until you feel the first desire to breathe.
5. Stop the timer. Take a soft inhale through the nose. If you gasp, you held too long.

A separate measurement: holding the breath at the top of an inhalation until involuntary breathing movement gives a static apnea score (typical range 30–90 seconds for untrained individuals).

Score interpretation:

• Under 10 seconds: typical for asthmatics, chronic mouth breathers, severe anxiety states
• 10–20 seconds: typical for chronically stressed adults
• 20–30 seconds: average healthy adult
• 30+ seconds: better-than-average breathing function
• 40+ seconds: typically associated with athletic conditioning

Note: the BOLT score’s correlation with VO2 max and clinical outcomes is real but moderate. Useful as a feedback tool for tracking your own progress, less useful as an absolute measure between individuals.

Improving Your BOLT Score (Buteyko Programs)

Buteyko practitioners structure training programs around the current BOLT score. Below is a condensed version of standard protocols.

For BOLT under 10 seconds (asthmatics, severe mouth-breathers):

• Measure BOLT each morning on waking
• Nasal-only breathing day and night (consider mouth taping)
• Practice Breathing Recovery (below) for 10 minutes, 6 times daily
• 10–15 minutes of slow walking daily with mouth closed; stop walking if you must mouth-breathe
• Avoid Breathe Light to Breathe Right at this stage (air hunger may destabilize breathing)
• Expected progress: 25 seconds within 6-8 weeks of consistent practice

For BOLT 10–20 seconds (high-stress adults):

• Daily morning measurement
• Nasal-only breathing
• Observe breathing throughout the day, keeping it calm and quiet
• Practice Breathe Light to Breathe Right (below) or Breathing Recovery for 10 minutes, 3 times daily
• Walk with nasal-only breathing for 30–60 minutes daily

For BOLT 20–30 seconds (regular exercisers who mouth-breathe):

• Daily measurement
• Nasal-only breathing
• Breathe Light to Breathe Right for 10 minutes, 3 times daily
• Add Simulated High-Altitude Training (below) to walking sessions
• Practice Breathing Recovery after physical exercise

For BOLT over 30 seconds:

• Daily measurement
• Nasal-only breathing during exercise, including running for 20 minutes to 1 hour
• Add breath holds during runs to simulate altitude
• Practice Advanced Simulation of High-Altitude Training every other day
• 15 minutes of light breathing before sleep

Breathe Light to Breathe Right

The foundational Buteyko technique. The aim is to reduce breathing volume to gradually build CO2 tolerance.

Technique:

1. Sit upright. One hand on the chest, one above the navel.
2. Breathe in, gently guiding the abdomen outward.
3. Breathe out, gently guiding the abdomen inward.
4. Apply gentle pressure with your hands to slightly reduce breathing movement. It should feel like you’re breathing against your hands.
5. Take in a smaller or shorter breath than you’d like.
6. Exhale gently, slowly, passively.
7. Do not tense, do not hold, do not pause. Continue smooth, smaller breaths.
8. Sustain a tolerable air hunger for 3–5 minutes. If breathing becomes erratic or your muscles tense, the air hunger is too much. Stop and resume normal breathing.

Use: Daily practice, multiple times per day for breathing-pattern reset.

Breathe Light to Breathe Right (Advanced – Three Stages)

For those comfortable with the basic version.

Stage 1: Diaphragm activation. Sit upright, lengthen the distance between navel and sternum. Hand on chest, hand above navel. Push abdomen outward, then draw it inward, paying attention to movement. A few minutes activate a stiff diaphragm.

Stage 2: Merging abdominal movement with breathing. Sit upright, hands on your chest and abdomen. Reduce chest movement as you breathe. Coordinate: abdomen out on inhale, in on exhale. Keep breathing silently and calmly.

Stage 3: Reducing breathing volume. With abdominal breathing established, exert gentle pressure with your hands. Take smaller breaths, more relaxed exhales. Aim to maintain air hunger for 3–5 minutes. Two sets of 5 minutes are sufficient to reset the breathing center.

Breathing Recovery

Gentler CO2 tolerance work for low-BOLT-score practitioners.

Technique:

1. Exhale normally through the nose.
2. Pinch the nose to hold breath for 2-5 seconds.
3. Breathe normally through the nose for 10 seconds.
4. Repeat for 5-10 minutes.

Use: Multiple times daily for those with BOLT under 15 seconds. Foundation before progressing to Breathe Light to Breathe Right.

Simulated High-Altitude Training (Walking)

For BOLT scores over 20 seconds.

Technique:

1. Walk for 1 minute with nasal breathing.
2. Gently exhale and hold breath until medium-strong air hunger.
3. Count paces during the hold.
4. When you need to breathe, do so minimally for 15 seconds.
5. Breathe normally for 30 seconds, then repeat.
6. Complete 8–10 breath holds per session.

A typical pace progression as conditioning develops: 20, 20, 30, 35, 42, 47, 53, 60, 60, 55.

Simulated High-Altitude Training (Running, Cycling, Swimming)

For BOLT scores over 30 seconds.

Technique:

1. 10-15 minutes into the run, gently exhale and hold breath until a strong air shortage.
2. Hold for 10-40 paces depending on speed and BOLT score.
3. Resume nasal breathing, jog for 1 minute until partially recovered.
4. Repeat 8-10 times during the session.
5. Breathing should recover to normal within a few breaths between holds.

For cycling and swimming, measure pedal strokes or arm strokes instead of paces.

Advanced Simulation of High-Altitude Training

Blood oxygen saturation must be monitored and kept above 80%. Use a pulse oximeter.

Technique:

1. Walk for 1 minute. Exhale and hold breath for approximately 40 paces.
2. Take a sip of air; hold breath for 10 more paces.
3. Take another sip of air (in or out); hold for 10 paces.
4. Continue with sips and short holds until a strong air shortage.
5. Reduce hold to 5 paces if too intense.
6. Perform for 1–2 minutes.

Use: Athletic CO2 tolerance development. Not for beginners.

Part 2: Resonance and Coherence Techniques

These all work via the cardiovascular baroreflex resonance mechanism described in Breathwork Basics.

Resonant/Coherent Breathing

Slow breathing at approximately 6 breaths per minute aligns with the cardiovascular system’s natural resonance frequency, producing maximum amplitude in heart rate variability. One of the most-studied breathing protocols.

Technique:

1. Sit upright. Relax your shoulders and belly. Exhale.
2. Inhale softly for 5 seconds, expanding the belly as the lower lungs fill.
3. Without pause, exhale softly for 5 seconds, drawing the belly in.
4. Each breath should feel like a continuous circle.
5. Continue for at least 10 cycles; longer is better.

Sustained Breathing (Progressive Ratios)

A progression for those experienced with coherent breathing.

Technique:

1. Start with a 1:1 ratio (5s inhale, 5s exhale) until breaths feel continuous and smooth.
2. After several weeks, extend the exhale (1:2 e.g., 5s in, 10s out).
3. Once that’s stable, add a breath hold (1:1:1).
4. Eventually, variations like 1:4:2 (10s inhale, 40s hold, 20s exhale) for advanced practitioners.

The transition from inhale to exhale should be curved rather than sharp. The mastery is in the smoothness.

Box Breathing

Common in military, first-responder, and meditation contexts. The structured count helps focus; the underlying mechanism is Coherent Breathing.

Standard technique: Inhale 4s, hold 4s, exhale 4s, hold 4s. Repeat for 5 minutes.

Sleep-oriented variant: Inhale 4s, hold 4s, exhale 6s, hold 2s. Six rounds. The longer exhale increases parasympathetic activation.

4-7-8 Breathing

Andrew Weil’s popular technique. The 4:7:8 ratio specifically isn’t supported by primary research as superior to other long-exhale protocols, but the long exhale itself activates parasympathetic mechanisms.

Technique:

1. Exhale through the mouth with a “whoosh” sound.
2. Close your mouth, inhale quietly through the nose for 4 seconds.
3. Hold breath for 7 seconds.
4. Exhale through the mouth with a whoosh for 8 seconds.
5. Repeat at least 4 times.

Caution: The 7-second hold can be uncomfortable for those with low CO2 tolerance. Reduce or skip the hold if you feel light-headed.

Paced Breathing (2-3-4)

Inhale 2s, hold 3s, exhale 4s. Limited specific evidence; mechanism overlaps with extended-exhale techniques.

7/11 Breathing

Inhale 7s through the nose, exhale 11s through pursed lips or nose. The extreme ratio amplifies parasympathetic effects but may be uncomfortable for those with low CO2 tolerance. Limited specific research.

Pursed Lip Breathing

The most clinically validated technique on this entire page. Standard recommended practice in pulmonary rehabilitation programs. Reduces breathlessness, slows respiratory rate, improves oxygen saturation, and decreases the work of breathing.

Technique: Inhale slowly through the nose for 2 counts. Purse lips as if blowing through a straw. Exhale slowly through pursed lips for 4 counts.

Particularly useful for: COPD, asthma, anxiety with hyperventilation symptoms, and recovery after exertion.

Diaphragmatic Breathing

Foundational technique that underlies most others. Consistently shown to reduce blood pressure, heart rate, and stress markers.

Technique:

1. Lie on your back, knees slightly bent, head on a pillow.
2. One hand on the upper chest, one below the rib cage.
3. Inhale slowly through the nose. The hand on your stomach should rise; the chest hand should stay relatively still.
4. Exhale slowly. The stomach hand falls.
5. Continue for 5-10 minutes.

If you can’t get the diaphragmatic movement, place a small object on your stomach for tactile feedback, or progress to crocodile breathing.

Crocodile Breathing (Diaphragm Training)

Prone-position diaphragmatic training is used in physiotherapy and rehabilitation.

Technique:

1. Lie face down with hands stacked under your forehead, backs of hands facing up.
2. Breathe deeply through the nose into your abdomen.
3. You’re breathing correctly when your lower back rises, and your sides expand into the floor.
4. Start with 20 breaths; build to 100.
5. Use a 1:2 inhale-to-exhale ratio.

The prone position naturally restricts chest breathing and forces diaphragmatic engagement.

Vagal Breathing (Extended Exhale)

Lengthening the exhale relative to the inhale increases vagal tone via respiratory sinus arrhythmia. The mechanism is well-established.

Technique: 4-second inhale, 2-second hold, 10-second exhale. Practice for 5 minutes. Pulse should drop 10-30% below resting rate.

The mechanism: when you inhale, the diaphragm descends, the heart’s chamber volume expands, blood flow slows, the sinoatrial node detects this and signals the brain to speed up the heart. When you exhale, the diaphragm rises, blood flow accelerates, the SA node detects this, and the parasympathetic system slows the heart. Longer exhales relative to inhales biases the entire cycle toward parasympathetic dominance.

Breath Focus Technique

Basic mindfulness of breath without altering the pattern.

Technique: Sit or lie comfortably. Bring awareness to your breath without trying to change it. Focus on the sensation of breath moving in and out. When the mind wanders, return to the breath.

Solid evidence base as a mindfulness practice; effects are on attention regulation and emotional reactivity rather than on breathing physiology specifically.

Part 3: Pranayama (Yogic Breathing Traditions)

Pranayama is a category of breathing practices from the yogic tradition. Some have moderate evidence bases; others are practiced primarily on traditional grounds.

Dirga Pranayama (Three Part Breath)

Beginner-level pranayama for getting comfortable with deep breathing.

Technique: Inhale, filling the belly first, then the rib cage, then the upper chest. Exhale slowly in reverse. The sequential filling teaches awareness of full lung capacity.

Use: Beginning pranayama, calming. Modest evidence base.

Sitali Pranayama (Cooling Breath)

Traditional cooling pranayama with mild parasympathetic effects.

Technique:

1. Sit comfortably, chin slightly lowered.
2. Curl the tongue lengthwise into a tube shape (some people genetically can’t. Use Sitkari instead).
3. Inhale slowly through the curled tongue.
4. Hold briefly at the top.
5. Exhale slowly through the nose.
6. Repeat 5-10 times.

The cooling sensation is real; mechanism involves evaporative cooling on the tongue. Modest evidence for stress reduction.

Sitkari Pranayama (Hissing Breath)

A variant of Sitali for those who can’t curl the tongue.

Technique: Inhale through clenched teeth with lips slightly parted, producing a hissing sound. Exhale through the nose.

Ujjayi Pranayama (Ocean Breath/Victorious Breath)

Constricting the throat slightly during nasal breathing produces an ocean-like sound and increases respiratory effort awareness. Has been shown to influence heart rate variability and parasympathetic activity through stimulation of the vagus nerve.

Technique:

1. Inhale through the nose, slightly constricting the throat to produce a soft hissing/ocean sound.
2. Exhale through the nose with the same throat constriction.
3. Inhale and exhale should be approximately equal length (or extend the exhale for a stronger parasympathetic effect).
4. Start with 10 cycles.

The slight throat constriction increases respiratory work and amplifies the heart rate variations associated with respiratory sinus arrhythmia.

Use: Standard during yoga asana practice; also useful as a standalone calming practice.

Alternate Nostril Breathing (Nadi Shodhana)

One of the most-studied pranayama techniques. Multiple trials show effects on heart rate variability, blood pressure, and autonomic balance.

Technique:

1. Position the right hand: thumb near right nostril, ring finger near left, index and middle finger between eyebrows.
2. Close the right nostril with the thumb. Inhale slowly through the left nostril.
3. Pause briefly with both nostrils closed.
4. Release the right nostril, close the left, exhale through the right.
5. Inhale through the right.
6. Pause. Switch.
7. Continue for 5–10 cycles.

Single-nostril variants: left-only for parasympathetic emphasis (the traditional claim of right-hemisphere activation has limited supporting evidence, but the parasympathetic effect is real); right-only for sympathetic emphasis.

Lion’s Breath (Simhasana Pranayama)

Forceful exhale with extended tongue. Limited specific research.

Technique: Inhale fully through the nose. Open mouth wide, extend tongue toward chin, exhale forcefully with a “haaa” sound. Some practitioners include eye-rolling upward.

Use: Tension release, particularly in the face and throat. Treat it as an expressive practice rather than a researched intervention.

Skull-Shining Breath (Kapalabhati)

Forceful diaphragmatic exhalation; passive inhalation. Modest evidence for cardiovascular and respiratory effects.

Technique:

1. Sit upright, empty the lungs.
2. Take a long, deep inhale.
3. Exhale forcefully with a sharp inward contraction of the abdomen.
4. Allow inhalation to happen passively as the abdomen relaxes.
5. Start with 10–15 reps; build to 60–120 per minute.

Contraindications: pregnancy, hypertension, heart disease, hernia, recent abdominal surgery, glaucoma, and recent eye surgery.

Surya Bhedana Pranayama (Sun-Piercing Breath)

Right-nostril-only inhalation for sympathetic activation.

Technique: Close the left nostril with the ring finger. Inhale slowly through the right nostril. Close the right nostril, exhale through the left. Continue.

Use: Energizing, mood elevation. Limited specific research.

Bhastrika (Bellows Breath/Breath of Fire)

Forceful diaphragmatic breathing in both directions. Activating; sometimes used as preparation for more intense practices.

Technique:

1. Sit upright.
2. Forceful inhales and exhales through the nose, driven by the diaphragm.
3. Start with 10-15 cycles; experienced practitioners can build to 60+ breaths per minute.
4. After the cycles, take a deep inhale and hold as long as is comfortable.
5. Exhale slowly through the mouth.

10-second stress relief variant: Press palms together in front of chest. Forceful breathing through the mouth for 10 seconds using the diaphragm. Take a deep inhale, exhale fully.

Contraindications: pregnancy, hypertension, heart conditions, recent surgery, hernia, anxiety states.

Kumbhaka Pranayama (Breath Retention)

Holding the breath as a primary practice. The Sanskrit word kumbha means “pot” – referring to the held container of breath.

Two forms: Antara kumbhaka (retention after inhale) and Bahya kumbhaka (retention after exhale). The advanced practice is Kevala kumbhaka: spontaneous suspension of breath in deep meditation.

Basic technique (Bahya kumbhaka): Inhale for 5 counts. Exhale for 5 counts. Hold breath out for 5 counts. Repeat.

Use: CO2 tolerance, traditional contemplative practice.

Contraindications: recovery from illness, surgery, or injury. Avoid until fully recovered. Pregnancy. Heart conditions.

Sudarshan Kriya Yoga (SKY)

A proprietary technique developed by Sri Sri Ravi Shankar. Has the strongest research base of any branded pranayama program. Multiple peer-reviewed studies show effects on stress, anxiety, depression, PTSD, substance abuse, and stress-related illness.

The full practice includes Ujjayi, Bhastrika, the Om chant, and the Sudarshan Kriya rhythmic breathing itself.

Sudarshan Kriya component (preparation): Sit comfortably with your back straight. Close eyes. Take several deep breaths to relax. Hands rest on knees, palms up.

• Phase 1: Slow Breathing (5-7 minutes): Inhale slowly through both nostrils for 2-3 seconds. Brief hold (1-2 seconds). Exhale slowly through both nostrils for 2-3 seconds. Brief hold.
• Phase 2: Medium Breathing (5-7 minutes): Increase rate slightly. Inhale and exhale through both nostrils in continuous cycles, approximately 1-2 seconds per breath.
• Phase 3: Fast Breathing (5-7 minutes): Inhale and exhale rapidly through both nostrils, approximately one breath per second.
• Phase 4: Relaxation (5-10 minutes): Gradually slow down to normal breathing. Take several deep breaths. Sit with eyes closed, observing the calm.

Use: SKY is typically taught in workshops by certified instructors. The above is the basic structure; the full practice involves additional elements better learned in person.

Note: the rapid-breathing phase can produce tetany (cramping in hands), dizziness, or strong emotional release in some practitioners. Practice in a stable seated position; never near water or while driving.

Part 4: Sympathetic Activation Techniques

All techniques in this section produce significant sympathetic nervous system activation. Not appropriate for: pregnancy, hypertension, cardiovascular disease, history of seizures, panic disorder, untreated psychiatric conditions, or anyone uncertain about their cardiovascular health. Never practice in or near water. Never while driving.

Wim Hof Method: Deep Treatment

The Wim Hof Method (WHM) is the most commercially prominent breathing-and-cold protocol in modern practice. It has both real research support and documented serious harms. Both deserve treatment.

The legitimate research. In 2014, Pickkers’ team at Radboud University Medical Center published a study in PNAS showing that subjects trained in the Wim Hof Method (cold exposure, hyperventilation, meditation) could voluntarily activate the sympathetic nervous system, increase epinephrine release, and attenuate the inflammatory response to experimental endotoxin (E. coli LPS) injection. This is a real, peer-reviewed, mechanism-based finding showing voluntary modulation of the innate immune system in healthy humans.

The original study was n=12. Subsequent work has been mixed. The broad finding (voluntary autonomic activation modulating immune response) has held; specific clinical claims (autoimmune disease cure, depression resolution, cancer effects) have not.

What the research does not support. The popular discourse around WHM includes claims about p53 induction, stem cell migration from bone marrow, prevention of Alzheimer’s and Parkinson’s disease, antidepressant effects, and tumor protein activation. These claims are extrapolations from in-vitro and animal hypoxia research, not findings about WHM in humans. The technique may have hypoxia-related effects worth investigating, but the current research base does not support the strong claims commonly made.

Documented serious harms. The WHM hyperventilation protocol produces hypocapnia (low blood CO2), which causes cerebral vasoconstriction and reduces cerebral blood flow. This is the same mechanism that causes shallow-water blackout in freedivers and competitive breath-holders. Multiple drowning deaths have been documented in swimmers practicing WHM hyperventilation before water entry. The Wim Hof organization’s official safety guidelines now require all practice to be done sitting or lying on a stable surface.

The technique should also not be practiced while driving, operating machinery, or in any context where loss of consciousness would be dangerous. Cases of fainting and brief loss of consciousness during WHM practice are common enough that the safety protocol exists for a reason.

Standard WHM Technique:

1. Sit in meditation posture or lie on a stable surface. Never near water, never while driving.
2. Close eyes. Take 30-40 deep breaths through the nose or mouth. Full inhale into the belly and chest; passive, unforced exhale. Don’t force the exhale; just let the air out.
3. After the last breath, exhale fully and hold the breath until you feel a clear urge to breathe (the retention phase). Time the hold if tracking progress.
4. When the urge arrives, take one full inhale and hold for 10-15 seconds (the recovery breath).
5. Release. Begin the next round. Repeat 3-4 cycles.

Climbing/High-Altitude Variant. WHM practitioners use modified forms during altitude exposure to manage altitude headaches and adjust to thin air. These should only be practiced by experienced climbers with WHM training and a pulse oximeter.

For altitude headaches:

• Slow your pace
• Breathe in fully and exhale 10 times
• Stop in a secure position
• Inhale fully, hold for 5 seconds, redirect breath toward the head
• Release
• Repeat until headache resolves

For walking at high altitude:

• Consciously breathe more than feels necessary
• Synchronize breath and pace into a cadence
• Don’t force the rhythm

For sleep adjustment above 13,000 feet:

• Wake 4-4.5 hours after falling asleep
• Practice the basic WHM until the pulse oximeter reads 95-100% saturation
• Continue for 30+ minutes
• Return to sleep

On the broader Hof phenomenon. The Wim Hof Method has become a cultural phenomenon partly because the underlying research is genuinely interesting and partly because the man himself is a charismatic figure. Both factors deserve recognition. The Pickkers team at Radboud is doing the rigorous work; the commercial Hof empire sometimes promotes claims that go beyond what the research supports. The cleanest position is to engage with the science (it’s real) while being honest about what the research does and does not show, and to take the safety profile seriously regardless of how the popular discourse frames it.

Tummo/Cyclic Hyperventilation

The traditional Tibetan Buddhist practice of gtum-mo (inner heat) is one of the historical antecedents of the Wim Hof Method. Benson, Lehmann et al. documented in 1982 that experienced Tummo practitioners could measurably raise body temperature in extremities through meditative breathing practice. The mechanism likely involves brown adipose tissue activation and sympathetic nervous system control similar to WHM.

The traditional practice is more meditation-and-visualization-heavy than WHM and is taught by qualified Tibetan Buddhist teachers within a contemplative context, not as a wellness protocol. If interested, seek out qualified instruction in the contemplative tradition rather than approximating it from popular sources.

One-Minute Breath (Kundalini Yoga)

Extended slow breathing was developed in the Kundalini Yoga tradition. The “hemisphere-integrating” claim attributed to it is traditional rather than evidence-based, but the long-cycle slow breathing pattern itself produces parasympathetic effects.

Technique:

1. Sit or stand upright with chest open.
2. Practice slow breathing (5s in, 5s out) for several minutes.
3. Inhale for 20 seconds, filling the lungs progressively from bottom to top.
4. Hold for 20 seconds.
5. Exhale for 20 seconds, releasing from top to bottom.
6. Build from 3 to 30 cycles.
7. If 20-second segments are too long, start with 5-second cycles, build to 10, then 20.

Part 5: Performance and Athletic Techniques

Intra-Abdominal Pressure for Strength Training

Heavy compound lifts require abdominal bracing for spinal protection and force production. The standard cue “squeeze your abs” or “hold your breath” usually produces rigid mechanics or near-blackouts during max lifts. Effective bracing uses diaphragmatic breath as a hydraulic pressure system.

Technique:

1. Before the eccentric phase of the lift (descent into a squat, lowering of a deadlift), take a deep diaphragmatic breath, filling the abdominal cavity with pressurized air.
2. Pull the navel toward the spine, creating a pressurized brace around the spine.
3. Maintain the brace through the eccentric and concentric phases.
4. To prevent dangerous breath-holding during prolonged effort, release pressure slowly through pursed lips during the lift, but don’t let it all out at once or you lose tension.

With practice, the bracing pattern becomes automatic before lifting heavy.

Static Apnea Tables

Breath-hold sequences from freediving training. Two main types:

CO2 Table (decreasing rest, builds CO2 tolerance):

• Hold 1:30, rest 2:15
• Hold 1:30, rest 2:00
• Hold 1:30, rest 1:45
• Hold 1:30, rest 1:30
• Hold 1:30, rest 1:15
• Hold 1:30, rest 1:00
• Hold 1:30, rest 1:00
• Hold 1:30

O2 Table (increasing holds, builds oxygen tolerance):

• Hold 1:00, rest 2:00
• Hold 1:15, rest 2:00
• Hold 1:30, rest 2:00
• Hold 1:45, rest 2:00
• Hold 2:00, rest 2:00
• Hold 2:15, rest 2:00
• Hold 2:30, rest 2:00
• Hold 2:30

Practice sitting or lying on a stable surface. Never in water without a trained partner. Shallow-water blackout from breath-holding has caused multiple deaths in unsupervised practice.

Use an apnea timer app to avoid mental math during holds.

Intermittent Hypoxia Training

Do not practice if you have asthma, COPD, cardiovascular disease, or other chronic conditions without medical clearance. Always train with a partner.

Various breath-hold and hypoxic exposure protocols are used to develop respiratory plasticity, antioxidant production, and hypoxic tolerance.

Sample technique:

1. Hold breath with face submerged in cold water for as long as possible. Repeat 5 times with 3 stabilizing breaths between.
2. Hyperventilate briefly, then hold breath as long as possible. Repeat 5 times. (Hyperventilating reduces CO2 and extends hold time, which is why this is risky in water.)
3. Swimming 25m underwater on a single breath, surface and stabilize, repeat for 10 minutes.

The Schagatay laboratory at Mid Sweden University has published extensively on the human dive reflex and breath-hold physiology if you want to read deeper.

Free Diving Breathwork (Reference,***Not Instruction***)

Competitive freedivers like Stig Severinsen use elaborate breathing protocols before extreme breath-holds. Severinsen’s pre-dive routine is documented in his book Breatheology, which is a useful source on the physiology of extreme breath-hold, but should not be approximated by amateurs.

The technique includes “lung packing” (glossopharyngeal insufflation, using the tongue and throat to pump additional air into already-full lungs). This is not recommended for general practice. It has documented serious harms, including lung barotrauma, cardiac arrest, and blackouts. It’s a technique used by professional freedivers under medical supervision, not a wellness practice.

If you’re interested in freediving, find a certified instructor (PADI, AIDA, SSI all have freediving certifications) and learn in a structured environment with proper safety protocols. Don’t approximate it from books or videos.

Breath-Hold Walks (Performance Variant)

Different from the nasal-decongestion version in the cheat sheet. This variant uses sustained walking with held breath to build hypoxic tolerance.

Technique:

1. While walking, take a deep belly breath and hold it.
2. Walk as far as comfortable on the held breath.
3. When you need to breathe, do so through the nose without gasping.
4. Continue walking with normal breathing for 1–2 minutes.
5. Repeat.

Optional advanced: match your steps to your heart rate (e.g., 120 steps per minute at 120 bpm). The synchronization theoretically trains the leg muscles to assist venous return at the optimal cardiac phase.

Part 6: Modern Branded Programs

This section covers commercial and tradition-derived programs with mixed evidence bases. Where the research base is real, it’s noted. Where it’s not, that’s noted too.

Holotropic Breathwork

Developed by Stanislav and Christina Grof in the 1970s as a non-pharmacological alternative to LSD therapy after psychedelic research was shut down. The practice involves prolonged deliberate hyperventilation accompanied by evocative music, performed in 2-3 hour group sessions under facilitator supervision.

The research base is real but limited and largely produced from within the Grof-affiliated community. A subset of practitioners report profound subjective experiences resembling psychedelic states. Subsequent work in psychedelic therapy has revisited Holotropic Breathwork as a non-pharmacological adjunct.

Documented adverse events: Holotropic Breathwork has been associated with psychotic emergence, dissociative episodes, dramatic emotional release that may destabilize vulnerable practitioners, and re-traumatization in trauma populations. The prolonged hyperventilation produces measurable alkalosis and cerebral vasoconstriction; combined with the suggestibility induced by music and group dynamics, it produces altered states that some practitioners are not equipped to integrate.

If you’re interested: seek out certified Grof-trained facilitators (the Grof Transpersonal Training program), and only after an honest assessment of personal risk factors. Not appropriate for those with a personal or family history of psychosis or bipolar disorder, severe trauma without therapeutic support, or pregnancy.

The technique itself is essentially the same prolonged hyperventilation as Wim Hof, sustained for much longer (60+ minutes) with musical and contextual enhancement. The same physiological warnings apply, with additional psychological ones.

This page does not provide a Holotropic Breathwork protocol. The technique requires trained supervision; reproducing it from text descriptions is the failure mode that produces adverse events.

Sudarshan Kriya Yoga

Already covered in the Pranayama section above. Has the strongest research base of any branded program. Multiple peer-reviewed studies on PTSD, depression, anxiety, and substance abuse. The Brown and Gerbarg work on coherent breathing, and SKY is the most rigorous research in this category.

Programs not covered here (and why)

This page no longer includes SOMA Breathwork, Vivation, Clarity Breathwork, Transformational Breath, Shamanic Breathwork, Neurodynamic Breathwork, or “Somatic Breathwork.”

These programs share a lineage. Most descend from Leonard Orr’s “rebirthing” tradition of the 1970s, which used circular connected breathing to produce altered states and emotional release. The specific branded programs differ mainly in commercial framing: different teacher, different brand, similar protocol. None of them has a primary research base, distinguishing them from the others or from Holotropic Breathwork (which is the most-studied member of the family).

The harm profile is similar to Holotropic Breathwork: prolonged hyperventilation, dissociative episodes, and occasional psychiatric emergence in vulnerable practitioners. Without distinctive evidence and with shared risks, listing them as separate techniques implies a distinction that the research doesn’t support. Practitioners who are interested in this family of techniques are better served by either:

1. Holotropic Breathwork with certified Grof-trained facilitators (if they want the deepest tradition with the most research)
2. Sudarshan Kriya Yoga (if they want the strongest research base for clinical outcomes)
3. Coherent/resonant breathing (if they want the autonomic effects without the prolonged hyperventilation risk)

Part 7: Specialized Applications

Therapeutic Breathing (Movement + Breath)

Mobility and rehabilitation exercises pair movement with breath. Drawn from Stig Severinsen’s Breatheology tradition.

• Cat stretch: Inhale into an arched back with chin down, hold 5-10s; exhale into a sagged back with head up. 20 reps. Practice “reverse breathing” (engaging perineum and lower abdominals on the inhale).
• Wag your tail: Quadruped position. Hold each side bend for 5-10s, exhale into the next side. 10 reps.
• Right angle: Lie on your back, legs raised at 90 degrees. Breathe quietly for 1-2 minutes.
• Plough pose: From a right angle, let legs fall toward your head until they touch the floor. Mind your neck.
• Child’s pose: Standard yoga child’s pose. Slow deep breathing.
• Maximum exhalation: Lying on back, full nasal inhalation, hold briefly, exhale as slowly as possible.

The Three Locks (Bandhas)

Performed after warm-up and physical preparation, in a seated position, often combined with pranayama.

• Root lock (Mula bandha): Pull the muscles of the rectum and perineum together. Hold 1-2 seconds.
• Abdominal lock (Uddiyana bandha): With full or half breath, draw the stomach and diaphragm in and up. Hold 5 seconds. Experienced practitioners can hold 1-4 minutes.
• Throat lock (Jalandhara bandha): Close the throat, lower the chin slightly, and lift the chest. Hold breath in. Release quietly before exhaling.
• Great lock (Maha bandha): All three simultaneously.

Contraindications: pregnancy, menstruation (for Mula bandha specifically by traditional teaching), cardiovascular conditions, recent abdominal surgery, and hernia.

Powerful Breathing (Strength Conditioning Warm-ups)

A sequence of warm-up exercises pairing breath with movement, drawn from Severinsen’s Breatheology:

• Chest and shoulder stretch: Inhale deeply, exhale into the stretch.
• Albatross: Inhale arms up, exhale arms down. 10-15 reps. Variations include front and back.
• Sky stretches: One arm up high while inhaling slowly. Hold full stretch 5-10 seconds with full inhale, then exhale slowly. 10 per side.
• Rag doll: Bend over with knees soft. Dangle arms and exhale with an audible “aahhhhh.”
• Natural chest press (Tarzan): Press hands hard against the sides of your rib cage during inhalation and exhalation. Hold each breath 5–10 seconds, squeezing additional air out.
• Artificial chest press (Snake): Tie a bicycle inner tube or elastic band around your chest. Breathe slowly against the resistance.

Decompression Breathing (Foundation Training)

Developed by Dr. Eric Goodman as part of Foundation Training, a postural rehabilitation program. Used for back pain, postural issues, and circulation.

Technique:

1. Inhale, expanding the rib cage up and out to the sides.
2. Maintain rib cage expansion as you exhale, using the abdominal muscles to expel air without letting the ribs collapse.

The point is to decouple rib cage expansion from the inhale-exhale cycle, training the diaphragm to work against postural collapse.

Use: Long flights, computer work breaks, postural reset.

Breathing Coordination

Sustained vocal exercise to engage the diaphragm and build respiratory efficiency.

Technique:

1. Sit with straight spine, chin perpendicular to body.
2. Take a soft inhale through the nose.
3. Begin counting aloud from 1 to 10, repeating, while exhaling.
4. As you reach the natural end of your exhale, continue counting in a whisper, letting your voice fade.
5. Continue counting with only lip movement until lungs feel completely empty.
6. Inhale fully, repeat. 10-30 cycles.

Can be done while walking or jogging.

Breathing for Mood Regulation

Combining hyperventilation with brief breath retention and physical engagement.

Technique:

1. Sit or lie comfortably. Observe what you’re feeling without judgment.
2. Take 20 deep breaths.
3. On the last breath, inhale deeply, hold, press your chin toward your chest, tense your pelvic floor, and direct tension up your core toward the head.
4. If you feel physical discomfort, focus on it and tense the muscles in that area. Hold for max 10 seconds.
5. Release the breath and tension.
6. Repeat 2-3 times.

The hyperventilation phase may produce dizziness or cramping. Stop if uncomfortable. Not for those with hypertension or cardiovascular conditions.

Breathing for Stress Control

A short structured practice using humming and nasal nitric oxide release.

Technique:

1. Set a timer for 1 minute.
2. Inhale deeply.
3. Exhale with a sustained “Hum,” “Ah,” or “Om.” The sound vibrates the nasal cavity, releasing nitric oxide.
4. Continue inhale-then-hummed-exhale until the timer ends.

Combines coherent breathing with the humming-NO mechanism. Modest evidence base for both components.

Breathing for Pain Regulation

Pain-focused breathing technique combining attention direction with breath retention.

Technique:

1. Sit or lie comfortably. Direct attention to the area of pain. Take 5 calm, deep breaths.
2. Take 20 more breaths. Full in, passive out. Don’t force.
3. Exhale fully. Inhale fully. Hold for 10 seconds.
4. While holding, focus on the pain point and “press” the held breath toward it. Tense surrounding muscles.
5. Release breath and tension.

The mechanism likely involves attention modulation (descending pain inhibition), parasympathetic shift, and the analgesic effects of breath holds. Limited specific research; the underlying principles are sound.

Soothing Breathing

A multi-component sequence for chronic discomfort. Components can be used independently.

Components:

• Touch the painful area with one hand. Gentle exhales focused on the area, allowing muscle tension to release.
• Exhale with pursed lips, making a “psss” sound. Visualize healing in the affected area. 5-10 minutes.
• Brief hyperventilation (10-20 breaths, audible): uses the WHM-style sympathetic activation for a different therapeutic angle. Alkalinizes the blood, raises adrenaline.
• Hook breaths (10x): full inhalation, then push the diaphragm and chest down with the epiglottis closed, increasing pressure. Releases more oxygen into the blood. Originally a WW2 fighter pilot technique for managing G-forces, spikes intracranial pressure and is not appropriate for those with hypertension, cardiovascular conditions, or pregnancy.
• Walking in nature, screaming for 5-10 cycles. Loosens tension and recruits multiple systems.
• Ujjayi (Victorious Breath) with extended exhale, attempting to enter the pain rather than avoid it.
• Imagined visualization of a peaceful environment paired with smooth breathing.

This is a kitchen-sink technique drawn from Severinsen’s Breatheology tradition. Best treated as a menu rather than a sequence. Pick the components that match your situation.

Part 8: Structural and Postural Techniques

Mouth Taping at Night: Detailed Treatment

Already in the cheat sheet. Expanded here for clinical context.

The popular mouth-taping movement has produced a flood of claims that outrun the research. The honest version: there’s modest evidence that nocturnal mouth taping in mild obstructive sleep apnea (OSA) reduces apnea-hypopnea index and improves sleep quality. Most other claims (testosterone improvement, cancer risk reduction, etc.) are downstream inferences from “better sleep helps health”, which is true, but doesn’t make mouth taping itself the active ingredient in those outcomes.

What the evidence supports:

• Reduced AHI in mild OSA populations
• Reduced snoring
• Reduced morning dry mouth
• Possible reduction in nocturnal awakening

What the evidence does not directly support:

• Hormonal optimization
• Cancer risk reduction
• ADHD improvement
• “Improved cognition” beyond the indirect effect of better sleep

Practical use: Use 3M Micropore tape or pre-cut nasal-breathing strips. A small piece across the center of the lips is sufficient. Acclimatize during the day before sleeping with it. Apply edible oil to your lips first if you find tape removal painful.

Contraindications: moderate-to-severe untreated OSA (mouth-taping with severe OSA can worsen oxygen desaturation and is dangerous), nasal obstruction or significant chronic congestion, GERD with regurgitation risk, alcohol consumption before bed, and recent illness with risk of vomiting. Consult a sleep specialist before attempting it if you suspect OSA.

Better Symmetry & Airway Care

Chronic mouth breathing in childhood is associated with altered craniofacial development, including narrowed dental arches, recessed mandibles, and compromised airway dimensions. The Harvold rhesus monkey experiments in 1981 demonstrated that induced nasal obstruction produces measurable craniofacial changes. narrowed dental arches, increased facial height, and malocclusion. In humans, the pattern is observational rather than experimental, but the Guilleminault group at Stanford has documented correlations with pediatric sleep-disordered breathing.

For children with breathing concerns:

• Address chronic nasal congestion at its source (allergies, environmental triggers, dietary contributors)
• Encourage chewing harder foods (the masticatory load supports jaw development)
• Discourage prolonged thumb-sucking, sippy cups, and prolonged bottle feeding
• Address snoring or mouth-breathing during sleep. See a pediatric sleep specialist if persistent
• Consider orofacial myofunctional therapy with a qualified practitioner

On the orthodontic question: the relationship between conventional orthodontics and airway development is contested. Some airway-focused orthodontists argue that traditional extraction-based orthodontics narrows the palate and worsens airway dimensions; mainstream orthodontics disputes this. The honest answer is that both perspectives have merit, and the optimal approach for a given child depends on individual airway assessment. If your child has both orthodontic and breathing concerns, find a practitioner who can assess both: ideally, an airway-focused orthodontist or a collaboration between an orthodontist and a sleep specialist. Don’t make sweeping decisions based on either side of the popular discourse.

Sleep Apnea Assessment and Management

Sleep apnea (obstructive or central) has serious downstream consequences: cardiovascular disease, metabolic dysfunction, cognitive impairment, mood disorders, and accelerated mortality. It’s also substantially underdiagnosed, particularly in women and lean individuals who don’t fit the stereotypical risk profile.

Self-screening tools:

• Continuous pulse oximetry overnight (consumer devices like Wellue O2Ring, Garmin watches with SpO2 tracking). Significant drops (below 90%) repeatedly during sleep suggest apnea.
• Snoring patterns, particularly snoring with pauses followed by gasps
• The STOP-BANG questionnaire is a standard clinical screening tool

Definitive diagnosis requires polysomnography (in-lab sleep study) or a validated home sleep test through a sleep medicine specialist.

Management for confirmed sleep apnea:

• CPAP remains the gold-standard treatment for moderate-to-severe OSA
• For mild OSA, alternatives include positional therapy (sleeping on your side), oral appliances, weight management if relevant, addressing nasal obstruction, and orofacial myofunctional therapy
• Surgical options exist for specific anatomical causes (tonsillectomy in children with hypertrophy; uvulopalatopharyngoplasty in selected adults; maxillomandibular advancement for severe cases)

A note on mouth taping with sleep apnea: Mouth taping is not a treatment for sleep apnea. If you suspect OSA, get diagnosed before experimenting with mouth taping. Taping over an obstructed airway is dangerous.

A Final Note on Source Attribution

Many of the techniques in this encyclopedia trace to specific authors and traditions. Where I’ve cited primary research, the citations are below. Where techniques are drawn from specific books (Severinsen’s Breatheology, Patrick McKeown’s The Oxygen Advantage, Wim Hof’s published materials, the Buteyko clinical tradition, the various pranayama traditions), credit belongs to those sources. The HOM is a synthesis layer; the techniques themselves were developed by others.

Where I’ve cut techniques (the modern branded breathwork programs without distinctive evidence), the goal isn’t to dismiss them but to be honest about the research base. Practitioners who find subjective benefit from those techniques aren’t wrong to do so; the techniques may simply work via mechanisms (hyperventilation, suggestion, group dynamics) that are already represented elsewhere in this encyclopedia under their better-evidenced forms.

For deeper engagement with any single tradition, the sources are usually better than secondary syntheses.