# Andrew Huberman’s Sigh Hack Calms Stress

> A quick sigh reduces stress instantly, according to Stanford neuroscientist Andrew Huberman.
- Title: Andrew Huberman’s Sigh Hack Calms Stress · Woman's World
- Summary: A quick sigh reduces stress instantly, according to Stanford neuroscientist Andrew Huberman. Andrew Huberman’s physiological sigh technique calms stress in…
- Keywords: andrew huberman, anxiety, physiological sigh, vagus nerve, breathing technique, stress relief, neuroscience, stanford, Andrew, Huberman, Sigh, Hack
- Source: Woman's World — https://womansworld.com/wellness/mental-health/andrew-hubermans-physiological-sigh-calms-stress-instantly
- Author: Allison Nemetz
- Published: 2026-10-02T18:09:41+00:00
- Read time: 1 min
- Topics: andrew huberman, anxiety, physiological sigh, vagus nerve, breathing technique, stress relief, neuroscience, stanford
## What is a physiological sigh?
A physiological sigh is a natural breathing pattern that shifts the body into a relaxed state during stress.

> Physiological sighs are, to my knowledge, the fastest and most effective way there is to deliberately calm yourself down
## How does it work?
Inhale deeply, add a quick inhale, then exhale slowly to activate the vagus nerve and slow heart rate.

> Inhales speed the heart up. When you exhale, the opposite is true. Anytime you emphasize exhales, making them longer than your inhales, you are slowing the heart rate down.
## Why is it effective?
It reduces anxiety by calming the prefrontal cortex and shifting the body from a stressed state to relaxation.

> The vagus nerve is the main line of communication between your brain and your major organs, and it’s the "switch" that determines if we’re on high alert or relaxed.
## Who benefits?
Women over age 50 report fewer racing thoughts and less chest tightness after regular practice.

> I have seen this particularly help women over age 50 who struggle with sleep
## How to practice?
Inhale deeply through the nose, add a quick inhale, then exhale slowly through the mouth for one to three cycles.

> Do it before public speaking or a hard conversation. Do it when you’re stuck in traffic or late to an important meeting
## Long-term benefits?
Daily practice slows breathing rate and reduces stress reactivity over time.

> Participants’ everyday breathing rate also slowed, which suggests their bodies were settling into a calmer baseline
## Safety tips?
Avoid if lightheaded; consult a doctor if you have lung or heart conditions.

> If you feel lightheaded, you should slow down. Additionally, anyone with a lung or heart condition should check with their doctor
## Why is it popular?
It’s a simple technique with no apps or classes needed, making it accessible for emergency use.

> You are always carrying around everything you need to perform this technique, so it’s perfect for ‘emergency use’
## What does Huberman say?
It will calm you down quickly and buffer you against future stress with regular practice.

> it will caaaaalm youuuu dooooown
## Long-term impact?
Regular practice makes the technique automatic, helping you handle stress better over time.

> Daily practice will also make physiological sighing an automatic skill
## Key takeaway

Andrew Huberman’s physiological sigh technique calms stress in seconds by slowing heart rate and activating the vagus nerve.