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Allergies
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Why We Aren't Getting Rid of Those Lousy HFA Inhalers
Why We Aren't Getting Rid of Those Lousy HFA Inhalers
There are only a few months to go before HFA inhalers are the only type of inhalers available for people with asthma. Starting in 2009, CFC inhalers will no longer...
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What is an allergy?
Normally your immune system's lymphocytes (white blood cells) travel to all parts of the body scanning the outside of proteins for chemical signatures. If it finds an invading protein, then the white blood cell returns to a lymph node where it becomes a plasma cell and generates antibodies to destroy that specific protein.
An allergy sufferer has a genetic defect that causes the white blood cells to misidentify protein and overreact to a foreign substance. If a person with a seafood allergy eats seafood, the white blood cells mistakenly think that the body is being invaded and produces many times more antibodies than are needed to fight the invaders. |
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