Breathwork

What is breathwork?

Breathwork, called pranayama in yoga traditions, is consciously steering your breathing to release tension, shift your attention, or let arousal settle down through your body. These are exercises you do yourself and stop yourself. That sets it apart from breath play, where someone else limits your breathing.

What it measurably does

Something, but less spectacular than the promise on most websites.

George Fincham and colleagues brought together in Scientific Reports every randomized study that compared breathwork against a control group without breathwork. Of the 1,325 results found, twelve remained for the main outcome, with 785 adult participants.

The effect on self-reported stress was small to moderate: g = -0.35, with a confidence interval of -0.55 to -0.14. For anxiety (twenty studies) it came out at g = -0.32, and for depressive symptoms (eighteen studies) g = -0.40.

Two caveats the authors add themselves. Most studies carried a moderate risk of bias, and the heterogeneity between studies was middling. So it is a real effect, and it is no miracle cure.

Which form pays off most

The dullest of the three, and that is a surprise.

Melis Balban and colleagues had participants practice five minutes a day for a month in Cell Reports Medicine, and compared three breathing forms against the same amount of mindfulness meditation. The three were cyclic sighing, with an extended exhale; box breathing, with equally long inhale, hold, and exhale; and cyclic hyperventilation with a hold, so a long inhale and a short exhale.

Cyclic sighing came out as the form that did the most. It gave a bigger improvement in mood and a stronger drop in breathing rate than the meditation group.

The common thread is the exhale. What you lengthen is not the exercise but the side that slows the nervous system down, and five minutes a day turned out to be enough in this setup to make that difference against a control group measurable. So no device was involved. No course, no breathing coach.

Where it tips over

With the variants that are sold the hardest.

Christian Schmitz and colleagues studied in Progress in Neuro-Psychopharmacology and Biological Psychiatry thirty experienced practitioners of high ventilation breathwork, the fast and deep form used to bring on an altered state of consciousness. They measured blood flow to the brain during the peak of the effect.

The result: a drop of 45.5 percent in blood flow to the gray matter, together with a higher heart rate and breathing rate. From an average of 29.81 to 16.24 milliliters per 100 grams per minute.

That is the mechanism behind the tingling, the cramping in the hands, and the light-headedness people describe afterward. The experience often presented as proof of depth is a measurable consequence of less blood in your cortex. It is also the reason not to do such sessions alone, not in or near water, and not if you have heart or vascular problems. Talk it over with your doctor before you start.

What people get wrong about breathwork

“Breathwork and breath control are the same thing.” With breathwork you steer yourself and stop yourself. With breath play someone else does that, and it ranks among the most dangerous things the scene knows.

“The more intense, the better.” In the one study that put three forms side by side, the calmest came out as the strongest.

“The effect is huge.” The meta-analysis found g = -0.35 on stress. Real, and small to moderate.

“That tingling feeling means it works.” It goes together with a sharp drop in blood flow to the brain. That is a physiological phenomenon, not a seal of approval.

“You need a course for it.” The best-performing exercise in that study lasted five minutes and consisted of exhaling longer than you inhale.

What you can do with this

• Make the exhale longer than the inhale. That is the common denominator of what works.
• Keep it short. Five minutes a day was the dose in the study.
• Never do the intense variants alone and never in or near water.
• Talk it over with your doctor if you have heart or vascular complaints, are pregnant, or have epilepsy. This page explains a term and is not medical advice.
• Don’t confuse it with breath play. Someone else limiting your breathing is a different activity with a different risk.

More on breathwork

Within this glossary, tantra explains why slowing down is the starting point there, and breath play and breath control describe the play form where someone else is at the wheel, with the risks that come with it.

Where this fits on this site

I use this during dates, and almost always without calling it that. Someone who comes in tense breathes high and short, and you don’t need to say anything about it. A longer exhale is enough, and it works better when you do it together than when I point it out. With tantra, that slowing down is the first thing we do together.

What I never do in practice are the intense variants. Those ask for guidance and a setting that a date is not.

Sources

• Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials. Guy W. Fincham, Clara Strauss, Jesus Montero-Marin & Kate Cavanagh, Scientific Reports 13, 2023 (DOI 10.1038/s41598-022-27247-y). Provides the search setup (1,325 results found, twelve randomized studies with 785 adult participants for the main outcome), the effect on self-reported stress at g = -0.35 (95% CI -0.55 to -0.14, p = 0.0009), the effects on anxiety (twenty studies, g = -0.32) and depressive symptoms (eighteen studies, g = -0.40), and the caveats about the moderate risk of bias and the heterogeneity between studies.
• Brief structured respiration practices enhance mood and reduce physiological arousal. Melis Yilmaz Balban, Eric Neri, Manuela M. Kogon et al., Cell Reports Medicine 4(1), 100895, 2023 (DOI 10.1016/j.xcrm.2022.100895). Provides the setup of the randomized study with three five-minute breathing exercises a day for a month, compared against the same amount of mindfulness meditation, the description of cyclic sighing, box breathing, and cyclic hyperventilation with a hold, and the finding that cyclic sighing gave a bigger improvement in mood and a stronger drop in breathing rate than the meditation group.
• How high ventilation breathwork alters consciousness: Hypoperfusion, network dynamics, and subjective experience. Christian N. Schmitz, Marijan Bernardic, Anamaria-Domnica Vlădoiu et al., Progress in Neuro-Psychopharmacology and Biological Psychiatry 149, 2026 (DOI 10.1016/j.pnpbp.2026.111873). Provides the setup with thirty experienced practitioners (average age 44.97 years) who underwent perfusion and resting-state fMRI, and the measured drop of 45.5 percent in blood flow to the gray matter during the maximal subjective effect, from 29.81 to 16.24 milliliters per 100 grams per minute, together with an elevated heart rate and breathing rate.

Related terms

• Breath play. The same breath, but steered by someone else, with a very different risk profile.
• Breath control. The English word for that play form, with the literature to match.
• Tantra. The tradition where slowing down and breathing are the starting point.
• Grounding. Coming back to the here and now, where the breath is often the first tool.