cough

A cough is a reflex that helps clear your airways of irritants, mucus, or foreign particles. It involves a sudden, forceful expulsion of air from your lungs, triggered by nerves in your throat and lungs when they detect irritation. This reflex protects your respiratory system and can be caused by infections, allergies, environmental irritants, or other health conditions. While often temporary, persistent coughs may indicate an underlying issue requiring medical attention. In essence, coughing is your body's way of defending and maintaining clear, healthy airways.