Asthma

asthma Asthma affects people of all ages, but it virtually lots starts in childhood. In the United States, to a greater extent(prenominal) than 22 zillion people argon cognise to engage asthma attack. Asthma is a lung disorder that affects approximately ten million people in the United States. (Cramer 2) In people with asthma, the airways of the lungs be hypersensitive to irritants such(prenominal) as cig artte smoke or allergens. When these irritants ar inhaled, the airways dish by iron outing, 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 well-nigh the underlying causes of asthma in recent years, a unequivocal treatment is still unavailable. In the last decade, asthma deaths widely distributed have rose 42%. (Cramer 2) The reasons for this increase are not clear; ho wever, many experts believe that the lack of touchstone treatments and the contrary monitoring of asthma patients have contributed to the increased mortality rate 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 t! urn, branches into smaller tubes called bronchioles. At the eradicate of the bronchioles are small, balloon like structures called alveoli. The alveoli are critical sacs that drop out oxygen to diffuse from body tissues into the lungs to be exhaled. During an asthma attack, the bronchi and bronchioles constrict and obstruct the passage of air into the alveoli....If you indispensableness to get a full essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay