The deadliest disease in the world is coronary artery disease (CAD). CAD occurs when the blood vessels that supply blood to the heart become narrowed.
A stroke occurs when an artery in the brain becomes blocked or leaks. This causes brain cells that are starved of oxygen to begin to die within minutes.
This infection is an infection in the airways and lungs. Illnesses can be caused by: Influenza,Pneumonia,Tuberculosis.
This is a long-term progressive lung disease that causes difficulty breathing. Chronic bronchitis and emphysema are types of COPD .
Respiratory tract cancers include cancers of the trachea, larynx, bronchi and lungs. The main cause is smoking, inhaling secondhand smoke and toxins from the environment.