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Snot is a crucial part of our immune system, and boogers are a byproduct of that system. Learn how they form (plus, why eating them might be advantageous) in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/nose-throat/boogers-form-in-nose.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

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