Essay on Asthma

This is the first 1,000 characters of 1736 words (6.94 pages) in the essay titled Asthma

Asthma

Asthma
Asthma is a lung disease that affects approximately ten million people in the United States. (Cramer 2) In people with asthma, the airways of the lungs are hypersensitive to irritants such as cigarette smoke or allergens. When these irritants are inhaled, the airways react by constricting, or narrowing. Some people with asthma have only mild, intermittent symptoms that can be controlled without drugs. In others, the symptoms are chronic, severe, and sometime life threatening. Although researchers have learned more about the underlying causes of asthma in recent years, a definitive treatment is still unavailable. In the last decade, asthma deaths worldwide have rose 42%. (Cramer 2) The reasons for this increase are not clear; however, many experts believe that the lack of standard treatments and the inconsistent monitoring of asthma patients have contributed to the increased mortality rate. With this disease comes many questions such as what is asthma, what are the symptoms and causes, how is it diagnosis, what are the treatments, how is it prevented and maintained. In answering these typical questions people will be more informed of a disease that is killing people.
Asthma is sometimes referred to as a disease of “twitchy lungs”, which means that the airways are extremely sensitive to irritants. The airways are the tubes that bring air from the windpipe, known as the trachea, to the lungs. These tubes are called the bronchi. Each bronchus, in turn,

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