Cách sử dụng
Emphysema is a medical condition that affects the lungs. It is a type of chronic obstructive pulmonary disease (COPD). Emphysema causes the tiny air sacs in the lungs to become damaged and lose their elasticity, making it difficult to breathe. This condition is usually caused by smoking or long-term exposure to air pollution. People with emphysema may experience shortness of breath, wheezing, and a chronic cough. It is important to seek medical attention if you have any of these symptoms.