Lung disease refers to a wide set of diseases that affect the function and capabilities of the lungs. It can range from minor respiratory infections to chronic conditions such as chronic obstructive pulmonary disease (COPD) and even lung cancer. These diseases can severely inhibit one’s quality of life, and many can even lead to death. Knowing the signs and symptoms of lung disease can help you get an early diagnosis and improve outcomes. In this article, we will explore the most common types of lung disease, the signs and symptoms of lung disease, risk factors, and prevention measures.  Common Types of Lung Diseases Chronic Obstructive Pulmonary Disease (COPD) Chronic obstructive pulmonary disease (COPD) is a set of lung diseases that block the airway making it more difficult to breathe. This disease affects over 12.5 million Americans. This condition is progressive, meaning that it gets worse over time due to the