Chronic obstructive pulmonary disease (COPD) is a chronic lung disease that causes lungs to inflame and disturbs the airflow into the lungs. People with COPD are at increased risk of developing heart disease, lung cancer and a variety of other conditions.
Symptoms:
• Breathing difficulty
• Coughing
• Mucus (sputum) production
• Wheezing sound during breathing
Causes:
It's typically caused by long-term exposure to irritating gases or particulate matter, most often from cigarette smoke.
