What Are Allergies And Why Do We Have Them? | Nightly News: Kids Edition

NBC News published this video item, entitled “What Are Allergies And Why Do We Have Them? | Nightly News: Kids Edition” – below is their description.

Spring has sprung and so has allergy season. What are allergies and why do kids and grownups have them this time of the year? We have the answers for you. Also in season: Taxes. What are they and why do our parents pay them? We share the details. Diamond dog: Meet Brooks, the team dog and Chief Morale Officer of the Frisco RoughRiders! Plus, saving the Koalas: We take a look at these adorable mammals and tell you all about the efforts underway to save them.

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In This Story: Allergy

Allergies are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These include hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis. Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling.

Common allergens include pollen and certain foods. Metals and other substances may also cause problems. Food, insect stings, and medications are common causes of severe reactions. Their development is due to both genetic and environmental factors.

Treatments for allergies include the avoidance of known allergens and the use of medications such as steroids and antihistamines. In severe reactions injectable adrenaline (epinephrine) is recommended.

Allergies are common. In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have atopic dermatitis at some point in time. Depending on the country about 1–18% of people have asthma. Anaphylaxis occurs in between 0.05–2% of people.

Source: Wikipedia

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The National Broadcasting Company is an American English-language commercial broadcast television and radio network which is the flagship property of and owned by Comcast. The network is headquartered at 30 Rockefeller Plaza in New York City, with additional major offices near Los Angeles, and Chicago.

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