Breath Vitality
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Regulate your nervous system — with every breath.

Your breath is
Your anchor.

Nervous system regulation. Measurable. Tangible. Daily.

Download on the App Store

Your nervous system speaks.
Are you listening?

Stress isn't failure — it's a signal. Your autonomic nervous system reacts to the world around you long before you're consciously aware. The question is: Do you know which state you're in?

Activated

Sympathetic dominance. Heart racing, thoughts spiraling, body on high alert.

Regulated

Ventral vagal active. Safe, connected, present. This is where you want to be.

Shutdown

Dorsal vagal. Frozen, exhausted, disconnected. Protection through withdrawal.

Everything you need.
Nothing that distracts.

📊

Vitality Score

Six dimensions — one score. Stress, sleep, regularity, nervous system, exercise, and CO2 tolerance in one clear number.

🌬

11 guided exercises

From calming 4-7-8 to Box Breathing to Wim Hof integration. Categorized by effect: anchor, sleep, activation, post-workout.

⚓

Drop anchor

One screen. Zero judgment. When it's all too much, the emergency breathing exercise guides you back — step by step.

☀

Light & Rhythm

Built-in solar calculator tracks your circadian light. No GPS tracking, no cloud — everything calculated locally.

Not mysticism.
Neuroscience.

Every exercise and every metric is based on peer-reviewed research.

Polyvagal Theory

Dr. Stephen Porges' research shows: Our autonomic nervous system has three states, not two. The vagus nerve is the key to regulation — and slow exhalation activates it specifically.

Heart Rate Variability (HRV)

The variability between your heartbeats is the best non-invasive marker for stress resilience. High HRV = flexible nervous system. Breath Vitality reads your HRV directly from Apple Health.

CO2 Tolerance & Bohr Effect

The BOLT score measures your CO2 tolerance — an indicator of breathing efficiency. The Bohr effect explains why more CO2 tolerance leads to better oxygen delivery, not less.

Try it. Now.

Three breaths. That's all.

Your anchor.
On your wrist.

The Apple Watch app is standalone — no iPhone needed. Start breathing exercises right from your wrist with haptic feedback for every breath.

  • ✓Complications for Vitality Score & nervous system
  • ✓CO2 Reset Walk with step counter
  • ✓Haptic breathing patterns during exercises
  • ✓Anchor feature for acute moments
73 Regulated

A glimpse into the app

Dashboard
Exercise
Nervous System
Anchor
Sleep

Screenshots coming soon — placeholder

FAQ

How can I regulate my nervous system?
Through targeted breathing exercises like the 4-7-8 technique, Box Breathing, or extended exhalation, you can activate your vagus nerve and regulate your autonomic nervous system. Breath Vitality offers 11 science-backed exercises based on Polyvagal Theory. The app measures your Heart Rate Variability (HRV) via Apple Health and shows you your nervous system state in real-time.
What are the best breathing exercises for stress?
The most effective breathing exercises for stress are: 1) 4-7-8 breathing (inhale 4 sec, hold 7, exhale 8) — activates the parasympathetic system. 2) Box Breathing (4×4 sec) — stabilizes the nervous system. 3) Extended exhalation — directly stimulates the vagus nerve. Breath Vitality guides you through all exercises with visual and haptic feedback.
What is HRV and why does it matter?
Heart Rate Variability (HRV) measures the time variation between consecutive heartbeats. High HRV indicates a flexible, resilient nervous system. It's the best non-invasive biomarker for stress resilience. Breath Vitality reads your HRV directly from Apple Health and calculates your Vitality Score — combining stress, sleep, exercise, and CO2 tolerance.
What is Polyvagal Theory?
Polyvagal Theory by Dr. Stephen Porges describes three states of the autonomic nervous system: Ventral vagal (regulated — safe, connected), Sympathetic (activated — fight/flight), and Dorsal vagal (shutdown — freeze). The vagus nerve connects brain and body. Through conscious breathing, especially slow exhalation, you can stimulate the vagus nerve and return to the regulated state.
How do I activate my vagus nerve?
You can activate your vagus nerve most effectively through: 1) Slow, deep exhalation (longer than inhalation). 2) Humming or singing (vibration stimulates the nerve). 3) Cold water on the face. 4) Regular breathing exercises like Box Breathing or 4-7-8. Breath Vitality offers all these as guided sessions with real-time HRV feedback.

Weekly breathing impulses

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Ready?

Free on the App Store. No account. No tracking.

Download on the App Store