All About Allergies

What are allergies? How are they caused, and what can people do to prevent them? SciShow explains!

Hosted by: Michael Aranda

Annotations:
Your Immune System: Natural Born Killer: https://youtu.be/CeVtPDjJBPU
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Sources:
http://pennstatehershey.adam.com/content.aspx?productId=28&pid=28&gid=000036
https://www.aafa.org/display.cfm?id=8&sub=16&cont=54
http://www.rsc.org/chemistryworld/podcast/CIIEcompounds/transcripts/histamine.asp
http://health.howstuffworks.com/diseases-conditions/allergies/allergy-basics/allergy1.htm

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