DFCI Zakim Center

Box Breathing (3 mins)

26 Jan, 2026


Box breathing is a simple breathing technique and has been used by the military and also in clinical settings for acute stress regulation.

Here's how to do it:

  1. Inhale slowly through the nose for a count of 4 seconds.
  2. Hold your breath for 4 seconds.
  3. Exhale slowly through the mouth for 4 seconds.
  4. Hold your breath again for 4 seconds.
  5. Repeat the cycle several times (3 to 5 minutes or more)

Tips:

  • Start with shorter hold times (e.g., 2-3 seconds) if 4 seconds feels challenging, then gradually increase.
  • Practice in a comfortable seated position with a straight spine.
  • Avoid if you feel dizzy or lightheaded — slow down or stop.
  • Combine with visualization or positive affirmations for deeper relaxation.

Benefits:

  • Reduces stress and anxiety by activating the parasympathetic nervous system.
  • Helps regulate heart rate and blood pressure.
  • Improves focus, concentration, and mental clarity.
  • Supports emotional regulation and resilience to stress.
  • Enhances mindfulness and body awareness.