Q: Why does nasal breathing matter? A: Nasal breathing warms, filters, and humidifies air; supports nitric oxide release for better oxygen delivery; promotes healthy jaw/tongue posture; and improves sleep quality. Mouth breathing bypasses these benefits and can strain the airway, teeth, and sleep. Q: How can I tell if I (or my child) mouth breathe? … Continue reading Mouth Breathing vs. Nasal Breathing: What’s the Difference and How Do I Fix It?