
Audio is streamed directly from the publisher (podtrac.com) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
The gunk that builds up at the inner corners of our eyes is residue of our eyeballs' protective coatings. Learn what it’s made of and why it turns to sand overnight in this episode of BrainStuff.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com
See omnystudio.com/listener for privacy information.