These are grouped by how they affect your lungs functions. Obstructive lung diseases, such as emphysema, asthma, and chronic bronchitis, cause the airways to become partly blocked or narrower, making it more difficult for air to move through them. Cigarette smoking and air pollution are major causes of these diseases. Restrictive lung diseases make it harder for the respiratory system to expand by causing a stiffening of the lung or chest wall or make the respiratory muscles unable to respond to nerve signals from the brain. Inhalation of substances such as asbestos, silica, and coal dust can cause some types of restrictive disease.
Smoking cigarettes is also a major cause of lung cancer.
Infectious lung diseases, such as tuberculosis and pneumonia, are caused by bacteria, viruses, or other organisms. These diseases are serious health concerns in all parts of the world. Of course, we all know smoking is bad for us. So, please be careful. If you suspect you have anything wrong with your lungs, or your breathing ability becomes impaired, make an appointment with your doctor.