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All calm toolsCalm tools · 2 min

Box breathing

Slow, even breathing in four parts to settle your body in a few minutes.

What it is

Box breathing is slow breathing in four equal parts. You breathe in for 4 seconds, hold for 4, breathe out for 4 and hold for 4, as if tracing the four sides of a box.

How it helps

When you are stressed, breathing becomes fast and shallow, which keeps the body on alert. Slow, controlled breathing activates the body's calming (parasympathetic) response. Your heart rate slows, your muscles soften, and the feeling of stress eases.

Try it now

Box breathing

Ready when you are

2-minute session

Seconds per side
Session length

Step-by-step

  1. Sit upright and relax your shoulders.
  2. Breathe out fully.
  3. Breathe in through your nose for 4 seconds.
  4. Hold for 4.
  5. Breathe out through your mouth for 4.
  6. Hold for 4.
  7. Repeat for 4–5 rounds, or for 2–4 minutes.

When to use it

  • Before an exam, interview or difficult conversation.
  • When you notice anxiety or panic building.
  • When you cannot fall asleep.
  • Any time you want a short reset during a busy day.

Safety notes

  • If you feel dizzy or light-headed, return to normal breathing.
  • Shorten the holds, or skip them, if you have a breathing or heart condition, are pregnant, or feel uncomfortable.

References

  • Zaccaro, A., et al. (2018). How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353. https://doi.org/10.3389/fnhum.2018.00353
  • Balban, M. Y., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. https://doi.org/10.1016/j.xcrm.2022.100895