Q: How do allergies and congestion affect breathing? A: Allergies and sinus congestion block the nasal passages, making it harder to breathe through the nose. This often forces mouth breathing, which bypasses the nose’s natural filtering and humidifying functions. Over time, this can lead to dry mouth, airway strain, and poor sleep quality. Q: Why … Continue reading How Allergies, Congestion & Sinus Issues Affect Breathing and Sleep Quality