carbonic acid immersion activates the parasympathetic nervous system, shifting the body toward a calmer cardiac rhythm
Increased vagal (parasympathetic) activity provides protection against ventricular tachyarrhythmias, suggesting that CO₂-water immersion's parasympathetic activation may have cardioprotective implications.
What this means for you
Your parasympathetic nervous system is the 'rest and recover' branch — when it's more active, your heart rhythm becomes more stable and your body shifts out of stress mode. This kind of nervous system balance is linked to better recovery, lower resting heart rate, and a more resilient cardiovascular response to daily stress.
The published research
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.