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Smoking & Respiratory Health: Impact on the Lungs Smoking exposes the respiratory system to toxic chemicals that damage airway lining and lung tissue. The cilia that normally clear mucus become impaired, leading Brown stuff in Mucus : r stopsmoking Biology Notes for A level: #52 Cigarette smoking and health Black Mucus from Throat: Causes, When to Worry, Relief The Connection Between Smoking And Coughing Up Blood: Symptoms Of Lung Disease How does smoking affect your anatomy and physiology?

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