— THE SCIENCE OF BREATH
Your breath is the only gateway to your nervous system.
Every inhale and exhale sends a direct signal to your brain. Understanding this is the first step to changing how you feel — in minutes, not months.
23,000
breaths you take every day, each one a chance to reset your nervous system
90 sec
the time it takes for slow breathing to measurably lower cortisol levels
40%
WHY IT WORKS
Breath is the remote control for your mind.
Your autonomic nervous system has two modes: fight-or-flight (sympathetic) and rest-and-digest (parasympathetic). Most of the time you can’t choose between them — except through your breath.
The vagus nerve, which runs from your brainstem to your gut, is directly stimulated by slow, deep exhalations. This is why a long sigh instantly feels calming. Tummo tracks every breath so you can see exactly how your nervous system is responding — in real time.
“Breathing is the only autonomic function you can consciously control — making it the most powerful tool we have for shifting our mental and emotional state.”
— Dr. Andrew Huberman, Stanford Neuroscience
Three ways breath changes everything
What the research shows.
01
Anxiety & Stress Relief
Slow, extended exhalations activate the parasympathetic nervous system within seconds. Studies show that a 4-7-8 breath pattern can reduce subjective anxiety by up to 40% in a single session. Unlike medication, it works immediately and has no side effects.
Parasympathetic activation
02
Meditation & Focus
Breath is the oldest anchor for meditation — and now we understand why. Rhythmic breathing synchronises neural oscillations in the prefrontal cortex, the part of the brain responsible for focus, decision-making, and emotional regulation. Tracking your breath closes the feedback loop.
Neural coherence
03
Sleep & Recovery
Your breathing rate at rest is one of the strongest indicators of recovery quality. Research links slower nocturnal breathing with deeper sleep stages and higher HRV — a key marker of overall health. Understanding your baseline is the first step to improving it.
Heart rate variability
From breath to brain in four steps.
01
You inhale
Your diaphragm descends, expanding the lungs. This stretches the heart slightly, momentarily speeding up your heart rate. Your sympathetic nervous system gets a gentle nudge.
02
You exhale
The diaphragm rises, the heart compresses slightly, slowing your heart rate. A long exhale sends a strong parasympathetic signal via the vagus nerve — your brain registers calm.
03
Tummo detects the pattern
The sensor reads subtle movement and pressure changes on your skin with every breath cycle, capturing rate, depth, and rhythm — data that was previously only available in clinical labs.
04
You see yourself clearly
The app translates raw data into insights: how stress affects your pattern, how meditation changes your rhythm, and what your baseline looks like — so you always know where you stand.
JOIN THE WAITLIST
Start breathing differently.
Join over 1,000 people who are done fighting their own nervous system. Lock in 50% off your Tummo before the waitlist closes.
- $149 launch price (reg. $299)
- 90-Day Money-Back Guarantee
- 12 months premium app included