coughing

Coughing is a reflex action that occurs when your body detects irritants, like dust, mucus, or germs, in your airways or lungs. It helps clear these substances, protecting your respiratory system from infection or blockage. When triggered, your brain signals the muscles involved in breathing to contract quickly, forcing air out of your lungs at high speed, often with a characteristic sound. This rapid airflow helps expel irritants and mucus, maintaining clear and healthy airways. Coughing can be temporary or persistent, depending on the cause, such as an infection, allergy, or other respiratory condition.