When you have asthma, your airways narrow and swell. They produce extra mucus, and breathing becomes difficult.
Asthma symptoms range from minor to severe and vary from person to person. You may have mild symptoms and asthma attacks may be infrequent. Between asthma flare-ups you may feel normal and have no trouble breathing. You may have symptoms primarily at night, during exercise or when you're exposed to specific triggers. Or you may have asthma symptoms all the time.
The most common asthma signs and symptoms are coughing, wheezing and shortness of breath. For some people, asthma symptoms are a minor nuisance. For others, they're a major problem that interferes with daily activities.
Asthma can't be cured, but its symptoms can be controlled.
FutureSearch Trials is currently conducting a research for Adolescents 12 years of age and older and Adults with Asthma.