Asthma causes the airways of the lungs to tighten and swell, leading to wheezing, cough, and shortness of breath. Asthma is a serious chronic disease of the lungs and cannot be cured, but can be controlled with proper care and treatment. People with asthma can live normal, active lives.
Source: Mississippi State Department of Health https://msdh.ms.gov/msdhsite/_static/43,11037,235.html