{"id":17708,"date":"2021-07-27T16:20:06","date_gmt":"2021-07-27T20:20:06","guid":{"rendered":"https:\/\/pentadocs.com\/?p=17708"},"modified":"2023-12-19T16:10:22","modified_gmt":"2023-12-19T21:10:22","slug":"allergies-how-do-they-develop","status":"publish","type":"post","link":"https:\/\/pentadocs.com\/allergies-how-do-they-develop\/","title":{"rendered":"Allergies: How Do They Develop?"},"content":{"rendered":"\n

Nobody is born with allergies. Rather, all 50 million people in the U.S. who have allergies developed the condition when their immune systems came into contact with the triggering allergens for the first time. Below we review exactly how allergies develop.<\/p>\n\n\n\n

The Immune System<\/h2>\n\n\n\n

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Our immune systems\u2019 job is to protect our bodies from bacteria, viruses, parasites and other toxic substances. When molecules enter the body via the eyes, nose, mouth or skin, the immune system labels them as either harmless or dangerous.<\/p>\n\n\n\n

In most cases, our bodies accept the presence of allergens, which is known as a Type 1 immune response. The cell responsible for this process is the regulatory T cell.<\/p>\n\n\n\n

An allergic response is the body\u2019s reaction to a substance that is normally harmless but that the immune system deems a threat, known as an allergen. This type of reaction is a Type 2 immune response, which involves a T helper type 2 cell.<\/p>\n\n\n\n

Allergic Sensitization<\/h2>\n\n\n\n

When your body is first exposed to an allergen<\/a> that results in a Type 2 response, it is known as allergic sensitization. Once the body has been sensitized, it keeps a lasting memory of the substance. Then, when it comes into contact with the substance in the future, IgE molecules release inflammatory chemicals such as histamine, which is responsible for your allergy symptoms.<\/p>\n\n\n\n

Allergic Responses<\/h2>\n\n\n\n

There are many different ways allergies can manifest, including:<\/p>\n\n\n\n