The word allergy is derived from the Greek words "allos" it generally refers to an altered reaction. An allergy is an abnormal immune system reaction against a normal harmless substance. A nonallergic person would have no reaction to this substance, but when you are allergic to something, your body recognizes the foreign substance and reacts by releasing chemicals which cause allergy symptoms. Some examples, by which the substances cause allergic reactions, are certain foods, dust, plant pollen, molds or medicines. Allergic reaction affects on a person's eyes, nose, throat, lungs, skin, or gastrointestinal tract. In an attempt to protect the body, the immune system produces antibodies to that substance.
Common allergy causes
Hereditary is the main cause of allergy. If parents have affected by allergy then children may also affected by it. But it is not necessary that you will definitely get it. Foods that people are most commonly allergic to are milk and other dairy products, eggs, wheat, soy, peanuts and tree nuts, and seafood. Some food allergies can be serious; many symptoms are like an itchy rash, a close nose, and food poisoning. Allergy reactions in many peoples are through the insect bites. Environmental allergens, they are the most common allergens. Some examples of Environmental allergens that can cause allergies in people are dust mites mold spores; animal hackles and spore from grass, and trees. Some medicines are also cause of allergic reactions. Chemicals which are used in the cosmetics and detergents are also causes of allergy.
Avoid allergy causes
Avoidance can help protect people against nonfood or chemical allergens. Some tips are here
Author is running a health information site peoples health information diseases like allergies, blood disorders, cancer, children’s health, digestive disorder, liver diseases etc. and tips on dieting, nutrition and improving lifestyle has been provided. For more information regarding allergy or other diseases visit Allergies
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