How Do Belly Buttons Work?

We’re not just navel gazing — belly buttons are seriously fascinating. Learn how they work in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/parts/5-things-didnt-know-about-belly-button.htm

https://castbox.fm/episode/How-Do-Belly-Buttons-Work–id1209262-id369288597?utm_source=website&utm_medium=dlink&utm_campaign=web_share&utm_content=How%20Do%20Belly%20Buttons%20Work%3F-CastBox_FM