Allergies and asthma.
Asthma is a lung disease that makes it difficult or even impossible to breathe. About 22 million Americans have this condition. It affects people's lives and can even cause death. The condition comes in two different forms, with a variety of possible triggers and treatment options are available. It's important to understand what people with these lung problems have to deal with. In order to get the oxygen our bodies need, people without breathing problems breathe air into their open, healthy lungs. The lungs process it and they exhale. With asthmatics, narrowing in the airways of the lungs makes it hard to breathe. This narrowing is caused because the lungs constrict and swell. When this happens, the person is having an asthma attack. When allergies are the cause, a person's immune system overreacts to a substance. Also, in some people, exercise leads to symptoms. In some cases, workers breathe in substances at work that cause their breathing problems. Cough variant ast