Box breathing

Domain X · Body, movement, breath & physical · Mark Divine · 2016

What it is

Box breathing (also called square or four-square breathing) is a low-intensity, paced breathing technique done at rest. It has four phases of equal length: breathe in, hold with full lungs, breathe out, hold with empty lungs. Mark Divine, a former US Navy SEAL officer and founder of SEALFIT, calls…

Format

• Box breathing is a single technique, not a therapy with phases. Sources give no session count or phase criteria. Below is a structure for building it into psychotherapy, with published content marked.
• Divine (Time, 2016): breathe all the air out, hold empty for a four-count, breathe in through the nose for four counts, hold full for a four-count "without clamping down or creating back pressure", breathe out smoothly through the nose for four counts, and repeat. Divine suggests a longer daily…

Who practises it, and how they are trained or regulated

• Box breathing (also called square or four-square breathing) is a low-intensity, paced breathing technique done at rest. It has four phases of equal length: breathe in, hold with full lungs, breathe out, hold with empty lungs. Mark Divine, a former US Navy SEAL officer and founder of SEALFIT, calls it his favourite practice and describes the equal ratio as "energetically neutral": he says it neither energises nor…
• How change happens, as sources describe it: a slow, regular rhythm with brief holds is said to reduce physiological arousal. Healthline explains that holding the breath lets carbon dioxide build up, which it says slows the heart rate. Deliberately pacing the breath also gives the person a sense of control over their body in stressful moments. For the psychotherapist, box breathing is a coping and self-regulation…

Evidence status, as the guide reports it

• Evidence status.

Questions to explore with your client

• What drew you to it, and what are you hoping it will change?
• Does it involve any substance, plant preparation, remedy or supplement? Has your doctor or prescriber been told, especially about any medication you take?
• Does it involve intense or unusual breathing? Have you been told about the medical conditions for which that is not advised?
• Is it a group, retreat or community? How do they respond if someone wants to leave or raises a concern?
• How do you and the practitioner understand what is happening, in spiritual or cultural terms? Is that a source of comfort, worry, or both?
• Who runs it, and what training or registration do they hold?
• What actually happens in a session or meeting, and how often?
• What does it cost, and is there pressure to commit to more?
• How do you feel afterwards, in the hours and days that follow?
• Does it fit with, or clash with, the work we do here?

What practitioners of it watch for

• forceful mouth exhalation or big gulps of air, which push towards overbreathing. Coach a slow, quiet exhale. Signs it is working: as in 4.3.
• stopping all practice suddenly, or over-relying on it as the only coping strategy. Signs it is working: the client names several coping options, with box breathing as one of them.
• no practice (see section 5), checking the heart-rate number compulsively, and practising only during crises. Signs it is working: regular use and the client noticing an effect sooner.
• using it to delay or avoid necessary action (see 4.8), and using it in unsafe settings. Signs it is working: the client reports using it on their own and recovering faster after stress peaks.
• the client feeling they have "failed" (normalise the adaptation), and continued dizziness, which suggests overbreathing and calls for slower, smaller breaths or a referral. Signs it is working:…

When to involve someone else

• New or worsening physical symptoms, or advice to stop or change prescribed medication: involve the client's doctor or prescriber.
• Signs of coercion, isolation from family and friends, escalating costs or secrecy: discuss openly and consider safeguarding.
• A crisis or thoughts of suicide: follow your crisis protocol. In the US, call or text 988; in the UK and Ireland, Samaritans on 116 123.

Drawn automatically from the guide's own sections. Stay curious: neither endorse nor dismiss what the client values, and check anything that matters against the full guide and its sources. Not medical advice.