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Physiological Sigh

The fastest way to calm down. Backed by Stanford research.

Quick inhale
2
Cycle
0/5
Time
00:00
Phase
1/3

About this practice

Two quick inhales through the nose followed by a long exhale through the mouth. Dr. Andrew Huberman's research found this to be the most efficient real-time stress reducer.

Benefits

  • Fastest real-time stress relief
  • Reduces CO2 quickly
  • Resets your nervous system in seconds
  • Works in under a minute

The science

The double inhale re-inflates collapsed alveoli (tiny lung sacs). The long exhale removes CO2 and stimulates the vagus nerve, dropping heart rate fast.

Pattern

inhale
1.5s
Quick inhale
inhale
1s
Top up
exhale
5s
Long exhale