Asthma is a chronic inflammatory disease of the lungs. People with asthma have airways that are hyperresponsive, meaning that the airways react to asthma triggers such as colds, cigarette smoke and exercise faster and more intensely than people whose airways are normal.
Signs and symptoms of asthma vary from person to person. They may also vary for a person depending on which trigger they have been exposed to.
A person may have some or all of these symptoms at any time. If you are experiencing these symptoms and are unable to breathe, please consult your health care provider immediately.
A trigger is any object, act, or event that causes asthma symptoms. The muscles in the airways react to triggers and causes them to tighten and narrow, making it harder to breathe.