--- title: "Why do we have allergies?" description: "Why do we have allergies?" author: "Erick Wilsom" published: 2023-10-19 updated: 2023-10-21 canonical: https://answers.mindstick.com/qa/103921/why-do-we-have-allergies category: "science" tags: ["science"] reading_time: 2 minutes --- # Why do we have allergies? ## Answers ### Answer by Saumya Mishra **Allergy is the result of mistaken identity. An allergen enters the body and is wrongly identified by the [immune system](https://www.mindstick.com/blog/300475/how-does-exercising-boost-your-immune-system) as a dangerous substance. In response, the** [**immune**](https://www.mindstick.com/blog/300472/ways-to-improve-your-immune-system) **system makes antibodies to attack the allergen. These are specific antibodies of the IgE (immunoglobulin E) class.** - Genetic Predisposition: A person's genetic makeup performs a enormous position of their susceptibility to allergic reactions. If you have got a own family [history](https://www.mindstick.com/news/2422/in-testing-on-windows-the-whatsapp-desktop-call-history-tab-was-discovered) of allergies, asthma, or different immune-related conditions, you are much more likely to [increase](https://www.mindstick.com/news/2333/mahindra-s-q4-profit-increased-by-46-as-vehicle-sales-increased-by-75) allergies yourself. Specific genes may also impact your immune machine's response to allergens. - Environmental Exposure: Allergies often expand after repeated exposure to allergens. Allergens are generally harmless [materials](https://www.mindstick.com/blog/301857/how-materials-work-in-space-to-make-them-better-on-earth), however in touchy individuals, the immune machine identifies them as a danger. Common allergens include pollen, dust mites, mold spores, puppy dander, positive foods, and bug stings. - Immune System Response: When an allergic person encounters an allergen, their immune [machine's](https://answers.mindstick.com/qa/94039/who-is-considered-as-the-founding-father-of-the-indian-space-programme) response entails the [manufacturing](https://www.mindstick.com/articles/167329/improving-productivity-within-the-manufacturing-industry) of antibodies called immunoglobulin E (IgE). These antibodies bind to the allergen. - Release of Chemicals: Once IgE antibodies are bound to the allergen, they [trigger](https://www.mindstick.com/articles/430/implementing-triggers-in-sql-server) the release of inflammatory chemical compounds, including histamine, from specialised immune cells known as mast cells. These [chemical](https://answers.mindstick.com/qa/72291/define-what-is-called-animals-living-on-the-sea-floor) substances reason the feature allergic reaction signs, consisting of swelling, itching, and mucus manufacturing. - Allergic Reaction: The immune device's response to the allergen results in the conventional signs and [symptoms](https://www.mindstick.com/blog/300781/sore-throat-symptoms-and-causes) of allergies, including sneezing, itching, runny nostril, watery eyes, and in extra severe instances, pores and skin rashes, and problem respiration. These signs are the frame's try to expel or shield in opposition to the perceived hazard. --- Original Source: https://answers.mindstick.com/qa/103921/why-do-we-have-allergies Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.