Silent Airway Mucus Plugs in COPD and Clinical Implications CHEST Medicor Research Inc. COPD and Vaping: Understanding the Risks and Long Term Effects Smoking and COPD (chronic obstructive pulmonary disease): MedlinePlus Medical Encyclopedia Image Smoking slowly damages your lungs, often without clear symptoms at first. Every cigarette releases thousands of toxic chemicals that enter your airways and lungs. Over time, this damage becomes serious and sometimes