A day in your nervous system
Auralize is a breathwork app that trains your autonomic nervous system — the system that decides whether you sleep, focus, recover, or stall.
Free · 90 seconds · No sign-up
Free · 90 seconds · No sign-up
06:42
01 · Dawn · before the inbox
Your body starts preparing before you wake. Without proper activation the first hour becomes fueled by caffeine and reactive emails.
Program
Controlled power breathing upon waking clears grogginess and builds a sharper ready state. Box breathing afterward stabilizes the activation so you feel sharp, not wired.
Open program
Auralize Early Access · Free during Early Access
Program
Controlled power breathing upon waking clears grogginess and builds a sharper ready state. Box breathing afterward stabilizes the activation so you feel sharp, not wired.
Open program
Auralize Early Access · Free during Early Access
13:15
02 · Day · post-lunch fog
The early-afternoon dip is real. Stress, fatigue and unsteady breathing can make it feel heavier.
16:30
03 · Dusk · the green-room minutes
Before a pitch, lift, race, or hard conversation, activation can outrun control. The goal is not to kill the energy. It is to give it a rhythm.
23:30
04 · Night · horizontal but not resting
You are horizontal, but your nervous system is still upright. The day is over on the calendar before it is over in the body.
The CO₂ tolerance test is the core assessment on the platform and it is free for everyone. It takes ninety seconds, no sign-up, and gives you the baseline that powers CO₂ Capacity Builder once you sign in to save it.
Free · No sign-up · Sign in after to save and start training
Built like a practice, not a mood board
Most breathwork apps and coaching are built for quiet moments. Auralize trains breath control for real pressure: measurable, repeatable, and specific enough to become a skill.
Measure
Baselines turn breathwork into training data: CO₂ tolerance, BOLT, resting rate, exhale control, and power capacity.
Unlock
Programs open from what the assessment shows, so the next step is tied to your physiology instead of guesswork.
Scale
Session intensity adjusts around the result, keeping practice challenging enough to matter and controlled enough to repeat.
Transfer
Shifts help you take the skill outside the app, with fast interventions for focus, activation, recovery, and sleep readiness.
The library is growing across assessments, programs, and shifts, but the loop stays the same: measure first, train with intent, and use the signal when your day actually asks for it.
Read the practice notes
The app gives you the practice. The articles explain the physiology: why CO₂ tolerance matters, how box breathing changes control, and where breath training fits for athletes and high-output professionals.
How elite athletes use breath control for composure, efficiency, recovery, and activation — and what the science says about it.
CO2 tolerance training works best when it is measured: take a controlled assessment, let the score set your box-breathing interval, train the Capacity Builder, then retest before changing difficulty.
Used in military training, hospital pre-op protocols, and elite sport — box breathing has more peer-reviewed evidence behind it than most breathing techniques. Here's what it does and when it works.
One breathing rhythm — 5.5 breaths per minute — produces measurable changes in heart rate variability. Here's what the research shows and how to use it.
Begin where it starts.
Free · 90 seconds · Sign in after to save your baseline and start CO₂ Capacity Builder
Or preview an Early Access program from the day —
