COPD Resources Chronic Obstructive Pulmonary Disease Perception and Awareness of Chronic Obstructive Pulmonary Disease, Chronic Bronchitis and Pulmonary Emphysema in the Spanish Urban Population Archivos de Bronconeumologa COPD: Symptoms, Causes & Treatment Alpine BioMedical 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 Newly Diagnosed with COPD American Lung Association