Respiratory Health How does smoking contribute to chronic obstructive pulmonary disease (COPD)? February 4, 2026 by Riding Smoking is a primary contributor to chronic obstructive pulmonary disease (COPD) because the toxic chemicals in tobacco smoke damage the airways and lung tissue. This damage leads to inflammation, excessive mucus production, and the destruction of air sacs in the lungs, which are characteristic features of COPD. Quitting smoking is the most effective way to […] Read more »