How much sighing is normal?

A handful an hour is ordinary. Several a minute, or enough that you or other people notice it, points toward a breathing pattern worth retraining.

Why do I yawn when I am not tired?

Yawning tracks transitions in arousal, not only sleepiness — which is why it turns up before a presentation or during anxiety. With frequent sighing and an unsatisfying breath, breathing pattern is the more likely explanation than sleep.

Can I just stop myself sighing?

Suppressing it without changing anything tends to make you more aware and more uncomfortable. What works is the small breath afterwards: break the recovery-breath habit and the frequency falls on its own over a week or two.

It very often travels with anxiety, in both directions — the pattern produces sensations that feel like anxiety, and anxiety produces the pattern. Working on the breathing is a way in that does not require you to first decide which came first.

Sighing and yawning all the time? It is usually not tiredness

You sigh several times an hour and you have started to notice it. You yawn in meetings when you are not remotely bored, and stretch for a breath that feels like it never fully arrives. Someone has probably asked if you are tired or fed up. You are neither.

Do this now

Interrupt the loop, one minute

1 minute

Right after the next sigh, do not take a recovery breath. Hold normally for two or three seconds instead.
Then breathe in through the nose, deliberately smaller than you want to.
Keep every breath small and quiet for a full minute, exhale a little longer than inhale.
Expect mild air hunger. That is the point, and it should stay mild.
Repeat whenever you catch a sigh. Counting the catches is itself the exercise.

Run it with a timer

What a sigh is for

A sigh is a deliberate large breath that reinflates air sacs which collapse during quiet breathing. Everyone does it a few times an hour and it is entirely normal. It becomes a problem when it is frequent, because each sigh dumps carbon dioxide.

The loop

Frequent sighing lowers CO₂, and low CO₂ produces the feeling of an unsatisfying breath — which triggers another sigh. Round it goes. Excessive sighing is one of the most recognisable signs of a dysfunctional breathing pattern and appears on the questionnaires clinicians use to describe it.

Why yawning belongs in the same story

Yawning is triggered by more than tiredness — states of arousal and transition produce it too, which is why people yawn before performances, during anxiety and in meetings they are alert for. Paired with sighing and an unsatisfying breath, it usually points at breathing pattern rather than sleep debt.

What changes it, over a week

Every time you catch one
Do not take the recovery breath. Small nasal breath instead, then keep them small for a minute.
All day
Mouth closed, breathing silent. If someone can hear you breathe at rest, it is too much air.
Twice a day, five minutes
Reduced breathing: slightly less air than you want, mild air hunger, never a struggle.
Each morning
Control Pause. Frequent sighing usually goes with a reading under 15 seconds, and it rises as the sighs fade.

When this is not a breathing pattern

See a clinician — promptly, and before assuming any of this applies to you — if any of these describe you:

Breathlessness on exertion, or that wakes you at night
Yawning with severe fatigue that rest does not touch
Sighing alongside chest pain, palpitations or fainting
A sudden change in breathing pattern with no obvious trigger
Excessive daytime sleepiness with snoring — ask about a sleep study

This page is education, not medical advice, and no part of it is a diagnosis. Full disclaimer.

Questions people ask

How much sighing is normal?: A handful an hour is ordinary. Several a minute, or enough that you or other people notice it, points toward a breathing pattern worth retraining.
Why do I yawn when I am not tired?: Yawning tracks transitions in arousal, not only sleepiness — which is why it turns up before a presentation or during anxiety. With frequent sighing and an unsatisfying breath, breathing pattern is the more likely explanation than sleep.
Can I just stop myself sighing?: Suppressing it without changing anything tends to make you more aware and more uncomfortable. What works is the small breath afterwards: break the recovery-breath habit and the frequency falls on its own over a week or two.
Is this anxiety?: It very often travels with anxiety, in both directions — the pattern produces sensations that feel like anxiety, and anxiety produces the pattern. Working on the breathing is a way in that does not require you to first decide which came first.

Put a number on it

Most of what is on this page tracks one measurement: the Control Pause. It takes sixty seconds, needs no account, and it is the thing that tells you whether any of this is working.

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