The CO2 tolerance breathwork trainer

Improve sleep apnea through restoring CO2 tolerance with breathwork

👉 Measure your relaxed pause

👉 Pick your training

Current relaxed pause: Not measured

(stored locally in the browser)

🧠 The core idea: reset your breathing pace

CO2 tolerance is your lungs accelerator pad for breathing:

Low CO2 tolerance = hypersensitive accelerator pad = shorter time until the urge to breathe = fast breathing = friction = airway collapse
High CO2 tolerance = Slow de-sensitized accelerator pad = longer time until the urge to breathe = slow, calm breathing = open airway

🔍 Why CO2 tolerance matters

Many with sleep apnea hyperventilate - breathing pattern is too fast and shallow, especially during sleep. That:

Lowers the carbon dioxide (CO2) present in your lungs. Reducing tolerance to CO2 as you experience less of it.
A chronic low CO2 tolerance triggers unstable breathing patterns. Speeds up the pace of breathing.
Which increases friction, eventually leading to snoring, and then airway collapse at night as it sucks shut

👉 Solution: Increase CO2 tolerance to breathe slow and steady automatically, especially when asleep.

Relaxed pause measurement

Instructions:

Take a normal inhale, then a normal exhale.
Hold your breath after the exhale.
When you feel the first natural urge to breathe, stop. Don't strain.
Time this — that's your relaxed pause.

Measurement starts in 5 seconds