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High-ventilation breathwork (holotropic, conscious connected)

High-ventilation breathwork covers modern practices such as Holotropic Breathwork, rebirthing and conscious connected breathing, in which people breathe fast and deeply for long periods, often to music. Studies in healthy adults show that the drop in carbon dioxide from deliberate overbreathing goes with altered states of consciousness that resemble psychedelic experiences, but the largest blinded randomised trial found brief daily practice no better for stress or mood than a slower-paced active comparator. Short-term effects such as light-headedness, dizziness and tingling or cramping of the hands are recognised, and trials exclude people with heart, blood-pressure, seizure, panic or psychotic conditions and people who are pregnant.

Evidence retrieved up to

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4 research claims, 1 tradition claim

Research4Tradition1
Marks

What the research shows

In healthy adults, sessions of fast, deep connected breathing (Holotropic and conscious connected breathwork) bring on altered states of consciousness, with features such as ego dissolution that resemble psychedelic experiences, and the onset of these states tracks the fall in exhaled carbon dioxide caused by deliberate overbreathing.

Take care: see the safety noteUnclear

Who this is about

healthy adults experienced in breathwork

Safety note

The altered states come from deliberate overbreathing, which lowers carbon dioxide in the blood; studies screened out people with heart, lung, seizure and psychotic conditions and people who are pregnant.

Details and sources

Practical note

Graded low: the main evidence is one experimental study of 61 experienced practitioners in which about 70% were randomly assigned to active breathing and 30% to normal breathing in the same session, with several authors trained as facilitators, plus a survey of 48 mental health professionals after a workshop; the physiological link is consistent with a narrative review. Holotropic sessions in the literature last about 1 to 3 hours.

Vegan note

Not diet-related; applies equally to people following a vegan diet.

Sources

In healthy young adults, three weeks of brief daily high-ventilation breathwork with breath holds reduced stress no more than a slower-paced breathing comparator did, and showed no added effect on anxiety, low mood, mental wellbeing or sleep-related impairment.

Take care: see the safety noteNo clear effect

Who this is about

healthy young adults

Safety note

Some participants reported light-headedness, dizziness and tingling or cramping of the fingers; the trial excluded people with blood-pressure, heart, lung, fainting, seizure or panic histories and people who were pregnant or breastfeeding.

Details and sources

Practical note

Graded moderate: one large blinded randomised trial (200 participants, about 40% guessed their group) with a well-matched active comparator; downgraded one level for imprecision because it is a single trial. Both groups improved on stress over time. The trial used 20 minutes a day for 3 weeks, delivered remotely; longer facilitated group sessions such as Holotropic Breathwork were not tested.

Vegan note

Not diet-related; applies equally to people following a vegan diet.

Sources

Small studies without a proper control group report that adults taking part in Holotropic or conscious connected breathwork sessions describe improved well-being and self-awareness afterwards, though some describe lower well-being.

Take care: see the safety noteUnclear

Who this is about

adults attending facilitated breathwork sessions

Safety note

Some participants reported lower well-being after a session, and adverse effects were not asked about directly, so harms are likely under-recorded.

Details and sources

Practical note

Graded very-low: pre-post designs with 20 and 33 participants recruited through facilitators or among experienced practitioners, no adequately powered control, high risk of bias and expectancy effects, and authors with ties to the practice. The self-awareness study used four Holotropic sessions.

Vegan note

Not diet-related; applies equally to people following a vegan diet.

Sources

High-ventilation breathwork can cause short-term light-headedness, dizziness and tingling with cramping of the hands (tetany) from overbreathing, and research excludes people with heart, blood-pressure, fainting, seizure, panic or psychotic histories and people who are pregnant; its harms have not been studied well.

Caution: see the safety noteRisk

Who this is about

adults practising high-ventilation breathwork

Safety note

Fainting is possible, so studies advise practising away from water, hard ground and any setting where fainting could be dangerous. People living with heart, blood-pressure, seizure, panic, psychotic, dissociative or bipolar conditions, and people who are pregnant, are excluded from studies and are generally advised to check with a health professional first.

Details and sources

Practical note

Graded low: side effects come from one randomised trial's self-report data in healthy young adults (few events, no objective cardiovascular measures) and from screening criteria and expert opinion rather than systematic harm monitoring; studies of experienced practitioners underestimate risk in newcomers.

Vegan note

Not diet-related; applies equally to people following a vegan diet.

Sources

What the tradition holds

The Holotropic Breathwork lineage holds that a non-ordinary state of consciousness reached through prolonged deep overbreathing with music activates a natural inner healing process of the psyche.

Take care: see the safety noteBenefit

Who this is about

people attending Holotropic Breathwork sessions

Safety note

This is a lineage belief, not a trial finding. The practice involves prolonged overbreathing, with the short-term effects and study exclusions described in this topic's safety claim.

Details and sources

The tradition's frame

Other

Holotropic Breathwork, developed by Christina and Stanislav Grof in 1975, takes its name from 'moving toward wholeness'; fast breathing and evocative music open a non-ordinary state of consciousness in which each person's inner healing intelligence is held to guide what emerges, followed by mandala drawing and sharing.

Practical note

The scientific claims in this topic find altered states but no added effect on stress or mood over an active comparator in the one blinded trial, so the inner-healing explanation remains untested.

Vegan note

Not diet-related; applies equally to people following a vegan diet.

Sources