What are allergies and why are we getting more of them? - Deepstash

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THECONVERSATION

What are allergies and why are we getting more of them?

What are allergies and why are we getting more of them?

theconversation.com

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Allergic reactions

Allergies occur when the immune system reacts to environmental substances that are harmless to most people.

Common allergens are food, pollen, dust mites, animals, insect stings, or medicines.

Most allergic reactions are only mild to moderate and can effectively be treated with antihistamines. But other reactions can be life-threatening and require emergency medical treatment.

The most severe allergic reactions are known as anaphylaxis, and people who suffer from it should have ...

Allergies are becoming more frequent in the western world. One in twenty will develop a food allergy in their life, and one in 100 will have a life-threatening allergic reaction.

From 1994 to 2004, hospital admissions for anaphylaxis doubled. In children under five years o...

Theories for why the number of allergies is rising:

  • Decreased exposure to infections or microbes in early life. This is known as the hygiene hypothesis.
  • Delayed introduction of allergenic foods until later in childhood, such as eggs and nuts...

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