When someone is shouting at you and you can't calm them down, arguing back usually makes it worse. What tends to work is bringing in someone they'll listen to: a manager, a security guard, a referee. Someone with enough authority to say "stop" and be heard.
That's the picture I use in the video. Sometimes the one shouting is your own mind. It loops through the same worries, and the harder you push back, the louder it gets. You can't win that argument by thinking harder. So instead of fighting your mind, call in a third party it will listen to: your heart.
The little brain in your heart
Your heart has its own network of nerve cells, which researchers call the intrinsic cardiac nervous system. People often nickname it the heart's "little brain". You'll usually hear the figure of about forty thousand neurons. Anatomical studies of human hearts give a wide range, from roughly fourteen thousand to more than ninety thousand, so treat the exact number loosely.
This network mostly handles the heart's own business, adjusting rhythm and responding to what it senses, and it stays in constant contact with the brain through the vagus nerve. Most of the fibres in the vagus nerve carry information from the body up to the brain rather than the other way round. "Little brain" is an image, of course. Your heart doesn't think the way your head does. But the conversation between them is real, and it runs in both directions.
Six breaths a minute
Breathing is the one part of this conversation you can steer on purpose. When you breathe in, your heart rate rises a little; when you breathe out, it slows down. At a normal pace these two rhythms don't line up very well. Slow your breathing to about six breaths a minute, roughly five or six seconds in and the same out, and something changes: heart rate and breath start moving together, and the swings in heart rate become much larger and smoother.
Researchers such as Paul Lehrer and Richard Gevirtz call this resonance breathing, because the cardiovascular system seems to have a natural rhythm near this pace, and breathing at it amplifies the effect. In the app it's called HRV breathing, after heart rate variability. In Arabic I call it التنفس المتناغم, harmonious breathing, because that is how it feels: breath and heartbeat in step.
What the research says
In the video I say it's proven. Here's what I mean by that, without overselling it. A 2017 meta-analysis by Goessl, Curtiss and Hofmann pooled 24 studies with 484 participants who trained this kind of breathing with heart-rate feedback. On average, people reported a large drop in stress and anxiety. The authors also said more well-controlled studies are needed, and most of the measures were people describing how they felt.
So this isn't a cure, and it doesn't replace treatment if you need it. It is one of the better-supported things you can do with your own body, for free, in a few minutes. In my experience, the calm comes less from the first session and more from doing it day after day.
How to try it
Sit comfortably, somewhere you don't need to drive or watch the road.
Breathe in gently through your nose for about five or six seconds, then out for about the same. Keep the breaths soft and easy. You're slowing down, not filling your lungs as much as you can.
Keep going for five to ten minutes. If you're new to it, even two minutes is a good start.
If you feel dizzy or light-headed, take smaller breaths or stop and breathe normally. If you have a heart or lung condition, check with your doctor first.
Practising in OKAZ
A guide makes the pace much easier to keep. In the OKAZ app, go to Watch, then Breathing techniques, then HRV Breathing. You'll find sessions of 9 rounds (about two minutes), 27 rounds (about five and a half) and 50 rounds (about ten). Each one shows you exactly when to breathe in and out.
Your mind has been running in a loop because it was waiting for someone to tell it things are fine. Give it five minutes of slow breathing a day, and let your heart be the one who says it.