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Sources & further reading:
sites.google.com/view/sources-allergies-and-worms/

Allergies are more than just overreactions – they might be an evolutionary relic from a time when worms invaded our bodies daily.


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CHAPTERS
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0:00 Give Well Sponsorship Part 01
0:30 Video Start
1:25 This is Very Upsetting – And Interesting
5:34 What Is an Allergy?
10:15 Give Well Sponsorship Part 02
11:12