Breathwork Library

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Evidence-based techniques you can use anywhere — at your desk, in the classroom, or before sleep. No equipment needed.

Featured technique

The Physiological Sigh

Fastest nervous system reset known to science

Your brain's built-in emergency brake. One breath pattern — discovered by Stanford researchers — that offloads accumulated CO₂ and activates the vagus nerve within seconds. No equipment, no training, no quiet room required.

  • 1 Take a full inhale through your nose — fill your lungs completely.
  • 2 Without exhaling, take a short second sniff through the nose to top up the lungs fully.
  • 3 Exhale fully and slowly through your mouth — as long as you can make it.
  • 4 Return to normal breathing and notice the shift. Repeat 1–3 times.
A 2023 randomised trial in Cell Reports Medicine found the physiological sigh reduces anxiety more rapidly than any other breathwork technique tested — including meditation and box breathing.

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5 cycles

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Box Breathing

Focus & calm

Used by Navy SEALs and first responders to maintain clarity under acute pressure.

  • Inhale 4 counts through your nose
  • Hold 4 counts — lungs full
  • Exhale 4 counts through your mouth
  • Hold 4 counts — lungs empty

Repeat 4–6 rounds. The equal-ratio pattern simultaneously activates the parasympathetic system and sharpens prefrontal focus — useful before any high-stakes moment.

Extended Exhale

Anxiety relief

A longer exhale than inhale directly activates the vagus nerve and slows heart rate.

  • Inhale 4 counts through your nose
  • Hold 7 counts
  • Exhale 8 counts through your mouth

Repeat 3–4 rounds. Dr Andrew Weil describes this as a natural tranquiliser. Effective in anxious moments and as a quick reset between tasks or meetings.

Coherent Breathing

Balance & resilience

Breathing at the rhythm that maximises heart rate variability — the body's own resilience marker.

  • Inhale 5 counts — gently through nose
  • Exhale 5 counts — gently through nose
  • Rhythm Keep it soft, even and flowing

5 minutes daily. Breathing at 5–6 breaths per minute creates HRV coherence — linked to reduced anxiety, better sleep and sustained emotional regulation over time.

4-7-8 Breathing

Sleep & wind-down

Signals safety to the nervous system and quiets the ruminative patterns that interrupt sleep.

  • Inhale 4 counts through your nose
  • Hold 7 counts
  • Exhale 8 counts through your mouth

Repeat 4 rounds. The 7-count hold increases oxygen absorption; the 8-count exhale triggers a deep relaxation response — ideal before sleep or after a demanding day.

More coming soon

We're adding new techniques monthly — from classroom delivery tools to advanced breathwork for educators and practitioners.