Allergy ( Allergies )

Allergy ( Allergies )


Allergy refers to the exaggerated reaction by our immune system in response to bodily contact with certain foreign substances. Exaggerated because these foreign substances are generally regarded by the body as harmless and no response occurs in people who are not allergic. The bodies of the people who are allergic to recognize foreign material and part of the immune system is activated. Allergic substances called " allergens ". Examples of allergens include pollens, dust mites, molds, and foods. To understand the language of allergy it is important to remember that allergens are substances that are foreign to the body and can cause an allergic reaction in certain people.


 
When allergens come in contact with the body, he causes the immune system to develop an allergic reaction in people who are allergic to it. When you react to allergens that do not fit are generally harmless to other people, you have an allergic reaction and can be referred to as allergic or atopic. By karanan, the people who tend to get called allergic or atopic allergies.



 

Austrian pediatrician named Clemens Pirquet (1874-1929) first used the term allergy. He referred to both immunity lucrative and dangerous as allergic hypersensitivity. The word allergy comes from the Greek words " allos, " meaning different or changed and " ergos, " meaning work or action. Allergy broadly referred to as " reaction to change ". The word allergy was first used in 1905 to describe the adverse reactions of children who are given repeated injections of horse serum to fight infection. The following year, the term allergy was proposed to explain the reactivity change is not expected this. 


Allergy Facts

 

-   Estimated that approximately 50 million Americans are affected by allergic conditions.


-   Cost of allergies in America is more than U.S. $ 10 billion annually.




-   Allergic rhinitis ( nasal allergies ) affects about 35 million Americans, 6 million of whom are children.



   
-  Asthma affects 15 million Americans , 5 million of whom are children.


     
- Number of asthma cases doubled over the last 20 years.



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