Box Breathing
4-4-4-4 breathing pattern used by Navy SEALs. Balances the autonomic nervous system and provides calm focus under pressure. 5-10 minutes is a full session.
- Time
- 5-10 min
- Cost
- Free
- Equipment
- None required
- Min. Trial
- 1-2 weeks
Dosage & Timing
- Duration
- 5-10 min
- Frequency
- Daily or as needed
- Best Time
- anytime
Evidence Strength
3/5 — ModerateModerate evidence. Well-established in military and clinical settings. Mechanism (vagal tone modulation) is sound. Limited RCT data specifically on box breathing.
Overview
A structured breathing pattern: inhale 4 seconds, hold 4 seconds, exhale 4 seconds, hold 4 seconds. Used by Navy SEALs and first responders for stress management. Effective for bringing the autonomic nervous system into balance.
Wellness education and routine support only. Review the evidence, caveats, and interactions before trying this protocol, and ask a clinician when medical conditions, pregnancy, medications, or symptoms are involved.
How To Do It
- 1
Inhale 4 seconds
Breathe in through your nose for 4 seconds.
- 2
Hold 4 seconds
Hold your breath for 4 seconds. Stay relaxed.
- 3
Exhale 4 seconds
Exhale slowly through your mouth for 4 seconds.
- 4
Hold 4 seconds
Hold at the bottom for 4 seconds. Then repeat.
- 5
Continue for 5-10 min
Start with 5 minutes. As you advance, extend to 5-5-5-5 or 6-6-6-6.
The Evidence
Each claim is linked to its source study. Confidence reflects the study design — systematic reviews and RCTs rank highest.
Slow breathing techniques before bedtime and the effects on sleep
Slow breathing interventions can improve autonomic balance and sleep-related outcomes.
Source Context
Primary references behind the protocol summary.
Who Popularized This
Creator references are context only. LiveWell weighs evidence, safety notes, and routine fit separately from who discussed a protocol.
Interactions & Warnings
Review 1 contraindication and 1 interaction note before adding this protocol to a routine.
Contraindications
- Severe anxiety about breath holds (start with shorter holds)
Interactions
- Can precede meditation or focus work
What To Track
These are review prompts for your own routine notes, not expected improvements or medical outcome targets.
Routine actions change your saved plan after sign-in. The protocol guidance above remains wellness education, not a personalized recommendation or expected outcome.
Saved-plan controls for this protocol
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