Medicine 3.0 for yournervous system.
Peter Attia's Medicine 3.0 framework says we need to intervene before stress becomes disease. Every other app tells you you're stressed. Vayu does something about it, with real-time haptic guidance, silently on your wrist.
Intelligence that understands you
Vayu analyzes biometrics, research papers, and your personal goals to create a breathing program uniquely calibrated for your wellbeing.
Step 1·Share your goals
Step 2·Receive your program
Vayu Intelligence processes your profile and generates a personalized breathwork program tailored to your timeline.
The Science
This isn't a wellness trend.It's physiology.
The autonomic nervous system is trainable, the same way a muscle is. Controlled breathing shifts CO₂ tolerance, vagal tone, and HRV. Those three levers directly modulate your stress response. Vayu reads your Apple Watch or Wear OS HRV after each session and uses it to shape the next one: if your HRV is trending down, the next session's cadence changes. Real-time haptics on the wrist hold your pace while you breathe. That's HRV-informed breathwork. Everything else is a timer.
HRV-Informed Sessions
Apple Watch or Wear OS HRV read after each session and used to shape the next one
28.6% HRV Improvement
Naturalistic pilot, 199 participants over 4-6 weeks. Preprint posted, under peer review
64% Day-30 Retention
Measured in our strongest 2025 cohort, not a standing average
No Screen Required
Silent haptic guidance on your wrist. A practice that adds no screen time.
Start your journey
Join thousands discovering the power of AI-personalized breathwork.
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