Most people think oxygen is the most important gas for the body…but carbon dioxide (CO₂) is just as essential.
CO₂ is what helps oxygen actually release into your cells (Bohr effect), regulates blood flow, and plays a massive role in balancing the nervous system.
When we build our CO₂ tolerance, we experience:• Better oxygen delivery• Greater stress resilience• Increased vagal tone• Improved circulation• More efficient breathing• Greater calmness + focus
Low CO₂ tolerance can lead to over-breathing, anxiety, fatigue, and an overactive stress response.
The good news… we can train this.
Simple ways to build CO₂ tolerance:• Nose breathing• Slowing the breath• Breath holds
One practice I do daily:Gentle nasal breathing → slow exhale → breath hold (with nose plugged).Working toward a 40-second hold is a strong indicator of a resilient nervous system.
When you train your breath…you train your ability to stay calm in the chaos.
Your breath is always with you.Use it wisely 🕊️