Science

Dive into the science of breathing: studies, physiological mechanisms and recent discoveries about breath.

October 14, 2026

Breathing and Longevity: Why Your Lung Capacity Predicts Life Expectancy

Cohorts followed for decades show that higher lung function is associated with a longer life. It declines with age, but that decline can be slowed.

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Science

10 min

Why Do We Yawn? The Science of Yawning and What It Does to Your Breathing

Yawning is neither boredom nor a lack of oxygen. A tour of the scientific hypotheses, of what a yawn does to the diaphragm and throat, and of a simple practice: three to five deliberate yawns before a breathing session.

Read articleOctober 14, 2026

CO₂ Tolerance Training: How Gentle Breath Holds Improve Your BOLT Score

Science

9 min

CO₂ Tolerance Training: How Gentle Breath Holds Improve Your BOLT Score

CO₂ tolerance determines how calm your resting breathing is. It is measured with the BOLT score and trained with short, unforced, empty-lung breath holds.

Read articleOctober 13, 2026

Breathing and the Microbiome: The Surprising Link Between Breath and Bacteria

Science

8 min

Breathing and the Microbiome: The Surprising Link Between Breath and Bacteria

How you breathe shapes the bacterial communities in your nose, lungs and even gut. A fascinating research field that's just emerging.

Read articleMarch 10, 2026

CO₂: The Overlooked Ally of Your Respiratory Health

Science

8 min

CO₂: The Overlooked Ally of Your Respiratory Health

We think CO₂ is waste to eliminate. In reality, it's essential for tissue oxygenation. Hyperventilation deprives you of it — here's why that's a problem.

Read articleMarch 8, 2026