Silent Airway Mucus Plugs in COPD and Clinical Implications CHEST E Cigarette or Vaping Product Use Associated Lung Injury: A Comprehensive Review The Relationship Between Emphysema and COPD PAM Health Smoking cigarettes has long been proven to cause severe lung damage, including chronic obstructive pulmonary disease (COPD), emphysema, and lung cancer. Over time, cigarette smoke destroys lung tissue, fills airways with tar,