Answer:
The two most common conditions are-
1. Difficulty in breathing
2. Chronic cough
Explanation:
COPD stands for chronic obstructive pulmonary disease. It is a group of lung disease. Chronic bronchitis and emphysema are common conditions that results into COPD. It blocks air flow and make it very difficult for a person to breathe. Damage to the lungs cannot be reversed but people can reduce its impact by lifestyle changes and some treatment. Symptoms include wheezing or a chronic cough, shortness of breathing etc.
