do cigarettes cause shortness of breath Smoking causes deep, progressive damage to the lungs by destroying air sacs, narrowing airways, reducing oxygen exchange, and weakening natural cleansing mechanisms. Over time, it leads to chronic cough, breathlessness, COPD, and Health Problems Caused by Secondhand
Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Wheezing: Causes, Treatments & When To Worry Explore 8 Ways You Can Quit Smoking EliteCare HC How smoking harms your lungs and why quitting helps
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