Facts On Asthma

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What is asthma? In many people, asthma appears to be an allergic reaction to substances commonly breathed in through the air, such as animal dander, pollen, or dust mite and cockroach waste products. The catch-all name for these substances, allergens, refers to anything that provokes an allergic reaction. Some people have a genetic predisposition to react to certain allergens.

When these people breathe in the allergen, the immune system goes into high gear as if fighting off a harmful parasite. The system produces a molecule called immunoglobulin E (IgE), one of a class of defensive molecules termed antibodies. The IgE antibody is central to the allergic reaction. For example, it causes mast cells, a type of specialized defensive cell, to release chemical 'weapons' into the airways. The airways then become inflamed and constricted, leading to coughing, wheezing, and difficulty breathing -- an asthma attack.

Without treatment, such as inhaled corticosteriods to reduce the inflammation, asthma attacks can be deadly. The overall death rate for asthma, however, is low. - NIAID

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Facts On Asthma

Home - American Lung Association site
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Home - American Lung Association site
May 20, 2004) Health Effects of Ozone and Particle Pollution. The American Lung Association State of the Air: 2004

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FACTS ABOUT ASTHMA. Number of people with asthma increased by more than 150% from 1980 to 1998. An estimated 17 million Americans have asthma. Most common chronic childhood disease affecting about 4.8 million children. EPA & USDA/CSREES

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Facts About Asthma
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Facts About Asthma
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American Lung Association of GeorgiaŽ --- East Central Region. Facts about Asthma. Asthma can be controlled . You can do it ! When you know how to control asthma, it no longer controls you. What Is Asthma? Asthma is a lung disease.

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Facts About Asthma
Adult Health Topics | All Health Topics. Find a UMHS Doctor. Search Adult Topics Search All Topics. This information is not a tool for self-diagnosis or a substitute for medical treatment. ... questions or concerns about this information or your medical condition. Facts About Asthma. What is Asthma? It's a chronic disease that ...

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