Mouth breathing is common—especially during a cold—but habitual mouth breathing (daytime, nighttime, or both) is different. It can be a signal that the nose isn’t doing its job, that sleep and airway are being stressed, or that learned oral–facial patterns have become the “default.” Here’s the key clinical idea: Mouth breathing is usually a symptom, … Continue reading Mouth Breathing: Causes, Risks, and What Therapy Can Do