Quit Smoking – About Smoker Cough :
What is Smoker Cough? : Cigarette smoke contains harmful chemicals that irritate the air passages and lungs. When a smoker inhales these substances, the respiratory system tries to protect itself by producing mucus and coughing. Cilia, the tiny hair like structures beat outward to sweep harmful substances out of the lungs. Smoking retards this sweeping action, so some of the toxins remain in the lungs and mucus remains in the airways. When the smoker sleeps, some cilia recover and start their functioning against these tiny particles or toxin of smoking. On waking, the smoker starts coughing because his/her lungs try to get rid of the toxins from the previous day’s smoking. Unfortunately, prolonged exposure to smoke completely destroys the cilia’s ability to function.
When this process continues, the mucus ultimately stays there instead of getting carried up to the mouth/nose and then to the outside by coughing. Then the smoker’s lungs become more exposed and susceptible than before, especially to bacteria and viruses in the air.