Asthma is a chronic lung condition characterized by symptoms such as shortness of breath, coughing, tightness in the chest, and wheezing. Asthma sufferers experience inflammation of the airways and in some cases excessive mucus production. This condition can lead to overall reduced lung function and difficulty breathing. Severity can range from mild to severe, and asthma attacks have the potential to become life threatening is not treated properly. Learn more about asthma and its causes, treatments, and symptoms in the articles below.