How often should I do it?

Use as needed for 1–3 minutes. It’s a quick reset rather than a long practice.

Generally safe for healthy adults. If you have respiratory issues, consult a clinician.

The second inhale helps reinflate collapsed alveoli, improving gas exchange.

Physiological Sigh

A rapid down‑shift for acute stress: two quick inhales through the nose (a second “top‑up” inhale), followed by a long, complete exhale through the mouth.

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How to do it

Inhale quickly through the nose for ~2 seconds.
Take a second, shorter inhale to “top‑up” the lungs.
Exhale fully through the mouth for ~6 seconds.
Repeat for 1–3 minutes as needed.

Benefits (why it helps)

Offloads CO₂ and expands alveoli, reducing shortness of breath feelings.
Rapidly reduces autonomic arousal; useful during spikes of stress or panic.

Not medical advice. If you feel dizzy, pause or stop.

FAQs

How often should I do it?: Use as needed for 1–3 minutes. It’s a quick reset rather than a long practice.
Is it safe?: Generally safe for healthy adults. If you have respiratory issues, consult a clinician.
Why the two inhales?: The second inhale helps reinflate collapsed alveoli, improving gas exchange.

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