Is physiological sigh breathing free?

Yes. ClearBreaths offers these breathing exercises and guided timers free on the web.

How long should I practice?

Start with one short session, usually 1 to 5 minutes, and stop if you feel dizzy or uncomfortable.

Free breathing guide

Try the physiological sigh online: a fast breathing exercise for acute stress and overwhelm.

Two short inhales through the nose followed by a long exhale. Stanford research shows it is the fastest way to lower stress in real time.

Use these free ClearBreaths sessions when you want a simple visual breathing timer and clear step-by-step pacing without creating an account.

For 3am wake-ups. Gets you back to sleep without checking your phone.

60 seconds. The fastest stress-down tool we have.

When the day is too much. A fast slope back to baseline.

A 90-second emergency exit.

When the conversation went sideways.