Definition

Normal, unlabored breathing, the boring baseline that everyone takes for granted until it's gone. It's what your lungs do when they're not trying to make a statement.

Example Usage

Post-treatment, the patient returned to eupnea with oxygen saturation of 98% on room air.

Origin

From Greek 'eu' (good, normal) + 'pnoia' (breathing)

Fun Fact

Eupnea is so unremarkable that most people never think about it—the average person takes about 20,000 breaths per day without conscious effort.

Source: Respiratory physiology and clinical terminology

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