Physiological Sigh
Cyclic Sighing, Sigh Breathing
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Calm your nervous system in seconds.
Physiological Sigh is a science-backed breathing app built around the fastest stress-relief technique ever studied. No meditation experience required. No complicated programs. Just three simple phases, and you'll feel the difference in under 30 seconds.
WHAT IS THE PHYSIOLOGICAL SIGH?
The physiological sigh is a natural reflex your body already performs — spontaneously, during deep sleep — to re-oxygenate your lungs and reset your nervous system. Stanford neuroscientist Andrew Huberman and his team discovered that triggering this reflex voluntarily is the single most effective real-time tool for reducing stress and anxiety.
It works in one cycle. It works anywhere. And it works immediately.
HOW IT WORKS
Each cycle consists of three phases:
A short inhale through the nose
A second, longer inhale through the nose to fully inflate your lungs
A long, slow exhale through the mouth
That's it. One cycle takes less than 9 seconds. A full 5-minute session delivers lasting effects on your heart rate, cortisol levels, and overall sense of calm.
WHY THIS APP
Most breathing apps ask you to follow complex programs or sit through lengthy guided sessions before you feel anything. This app does one thing, and does it exceptionally well.
We built it around the physiological sigh specifically because the science is clear: of all real-time stress-reduction techniques studied, this one produces the fastest and most measurable results. No guesswork, no filler.
FEATURES
Animated breathing disc that guides you through each phase in real time
Phase card showing exactly where you are in the cycle
Elapsed and remaining time counter
Customizable phase durations — adjust each inhale and exhale to your comfort
Session length from 1 to 30 minutes
Ambient sound library — rain, ocean waves, fireplace, white noise, singing bowls, and more
Custom backgrounds — choose the atmosphere that helps you focus
Haptic feedback with a distinct pattern for each phase
Daily reminder notifications — up to 3 scheduled reminders per day
Clean, distraction-free interface designed for daily use
BACKED BY SCIENCE
The physiological sigh has been studied since the 1930s and brought into mainstream wellness by researchers at Stanford University. A 2023 study published in Cell Reports Medicine found that cyclic sighing practiced for 5 minutes daily produced greater improvements in mood and reductions in stress than other breathing techniques and mindfulness meditation.
This app puts that research directly in your hands.
PERFECT FOR
Moments of acute stress or anxiety
Pre-meeting nerves or public speaking
Winding down before sleep
Resetting after an intense workout
Building a daily mindfulness habit without the time commitment
SIMPLE BY DESIGN
Open the app. Press play. Breathe. That's the entire experience. No account required to get started, no onboarding questionnaire, no streak pressure. Just a tool that works when you need it.
Start your first session today. Your nervous system will thank you.
Physiological Sigh is not a medical device and is not intended to diagnose, treat, or prevent any medical condition. If you experience anxiety disorders or other health conditions, please consult a qualified healthcare professional.
- Terms Of Use : https://occirama.com/physiological-sigh/terms-of-use/
- Privacy Policy : https://occirama.com/physiological-sigh/privacy/
Ratings & Reviews
In this new version of Physiological Sigh, we improve user experience
The developer, emmanuel orvain, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- emmanuel orvain
- Size
- 44.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Italian, Japanese, Portuguese, Simplified Chinese, Spanish
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Premium Account / Year $9.99
- Premium Account / Month $2.99
- Copyright
- Copyright © 2026-2026 Emmanuel Orvain. All rights reserved