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The Physiological Sigh

When you're flooded

The fastest way down. Use it when you have almost no time.

1. Inhale through your nose until your lungs feel about three-quarters full.
2. Take a second, shorter sniff on top of that inhale.
3. Let it all out slowly through your mouth — long and unforced.
4. Repeat two or three times.

Why it works: The double inhale reinflates collapsed air sacs and offloads carbon dioxide quickly. It's the shape your body already makes when you sob or sleep — you're doing it deliberately.