Asthma is a lung disease that can be life threatening. Asthma is a chronic, or long-term disease, which can affect you for the rest of your life.
Asthma causes breathing problems.
The airways in the lungs get blocked, causing the lungs to get less air than normal. Asthma can develop quickly and it can range from being a mild discomfort to a life-threatening attack if breathing stops completely. Asthma problems are often separated by symptom-free periods. When asthma causes breathing problems, the breathing problems are called asthma attacks or episodes of asthma. This mucus is very thick and sticky, and tends to clog up the tubes.