mucus | Ask Dr. Universe | Washington State University

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Why do we have earwax? -David, 10, Albany, Oregon

April 4, 2016 rcwebber

https://www.youtube.com/watch?v=as4TWgC4xxA
Dear David,

The other day I was scratching my ears when I noticed some yellowish-brown gunk on my claw. It was pretty gross, but it also made me very curious.

What are boogers? -Taryn, 9, Seattle, WA

February 29, 2016 rcwebber

What exactly is a booger and is it harmful to eat? -Concerned grandpa

Dear curious readers,

When I went to visit my friend Susan Perkins, an instructor of nursing at Washington State University, she shined a tiny light in my nose. Sure enough, she found some crusty little boogies.