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CalmCraft

Tool category · 1 of 5

Breathing & physiology

Slow, paced breathing is the fastest non-pharmacological way to tell the vagus nerve you're safe. Each tool below runs a different pattern. Pick the one that matches the shape of what you're feeling: tense → coherent; wired → 4-7-8; panicking → physiological sigh.

Tool 1 · Customisable

Box Breathing Studio

Adjust each phase from 2 to 10 seconds. Default 4-4-4-4 — used by Navy SEALs to steady under pressure.

Ready

Press start

Phase 1 of 4 · Cycle 1 of 4

How to use this well

  1. Sit or stand with a straight spine — slouched posture restricts the diaphragm.
  2. Breathe through the nose on the inhale; either is fine on the exhale.
  3. Let the belly rise on inhale, not the chest. Hands on belly help at first.
  4. Don't fight the hold — the hold should be gentle, not forced. If you need air, shorten the hold.
  5. Stop and reset if you feel dizzy, light-headed, or anxious getting worse. Switch to normal breathing for a minute.

When it helps most

  • Before a difficult conversation, presentation, or exam.
  • At the first sign of a tension build — neck tightness, shallow breathing, racing thoughts.
  • As a default pattern when you don't know which breathing tool to use.

Common pitfalls

  • Breathing too deep. Box breath is about rhythm, not volume. About 70% of a comfortable breath is plenty.
  • Holding too long. The 4-count hold should feel easy. If it doesn't, drop to 3.
  • Going through the motions. If your mind is still sprinting, slow the rhythm further, even down to 2-2-2-2.