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BR · P1 · BreathStrong evidence
Box Breathing
Slows autonomic arousal through paced, extended exhales.
calmfocus 3m
Check before you begin
Severe breathlessness · Active panic with air hunger (shorten holds)
About this evidence tier
This is a provisional editorial rating for the general practice, not proof that it treats a condition. Research citations will be attached after source-level review. Use the safety notes and judge the practice by your own tracked response.
Box breathing paces the breath into four equal counts: inhale for four, hold for four, exhale for four, hold empty for four. The regularity gives the autonomic nervous system a steady rhythm to follow, which slows heart rate and quiets a...