Box Breathing

Sit or stand so your chest is not folded. Breathe out fully first, then:

1. Breathe in through your nose for a count of four. 2. Hold the breath in for four. 3. Breathe out slowly through your mouth for four. 4. Hold with your lungs empty for four.

That is one breath, sixteen seconds. Repeat for a few minutes. If four feels too long, use three for every side; the even rhythm matters more than the number.

Box breathing slows you to under four breaths a minute, far below the twelve to twenty most people take when they are stressed. Slow breathing with a steady rhythm gives your nervous system a signal it reads as safety, and the two holds keep your attention busy, so there is less room for the thought that was looping.

It is often called the Navy SEAL technique because former SEAL Mark Divine popularised it, but there is nothing military about it. The same pattern shows up in yoga breathing and in clinical relaxation training under the name square breathing.

Box breathing is the one to use when you need to stay sharp: before a hard conversation, a presentation, a call you have been dreading, or when you are wound up at your desk. It calms without making you drowsy. For sleep, 4-7-8 breathing is the better fit, because its long out-breath does more of the slowing down.

If you are in the middle of a spike and four-second holds feel impossible, start with two or three physiological sighs instead, then come back to the box once you can.

Forcing the hold. If you are straining by the end of a four-count, the counts are too long for you right now; drop to three.

Breathing in big. The in-breath should be slow and full, not a gasp. Over-breathing can leave you lightheaded, which is the opposite of the point.

Doing it only in the emergency. Two minutes a day when nothing is wrong makes it far easier to reach for when something is.

Breathing exercises take the edge off a moment. They do not fix what set it off. If something specific is behind it, a fight, a message you cannot stop rereading, a decision you keep circling, it helps to say it out loud. The 5-4-3-2-1 grounding exercise is another quick way back into the room, and this guide to breathing exercises for anxiety covers the research in more depth.