The exhale is the brake

Breathing is the one part of your stress physiology you can steer directly. The important half is the exhale. A longer out-breath than in-breath nudges the parasympathetic system — the part responsible for settling — and it works within a minute or two.

Try this: breathe in through your nose for a count of four, then out slowly for a count of six or eight. Do it six times. That is roughly a minute. You are not aiming to feel blissful. You are aiming to come down one notch, from nine to seven, so you can think again.

Do it before things, not only after. Before the meeting you are dreading. Before you reply to that message. Before you walk in the front door at home, so your family gets you rather than your workday.

The Library has a box-breathing practice if you would like a visual guide. Use it as a tool, not a test. Some days it will barely register; the point is repetition, not performance.