What's Inside Your Belly Button?

Belly buttons are the first human scar, and about 90% of them are innies. If you have an innie, chances are it’s full of dozens of kinds of bacteria, fungi, and lint — especially if you have a hairy belly. And if your navel is infected, there might also be a cheese-like liquid inside. Yum!

MORE HUMAN BODY SCIENCE CONTENT:
Giving Birth In Your 20s VS Your 30s
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Why Some People's Hair Turns Gray
https://www.youtube.com/watch?v=QJMTk8sBfFE
Why Do Men Get Beer Bellies?
https://www.youtube.com/watch?v=oJtQth3bl5M&t=10s

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What's Inside Your Belly Button?

Видео What's Inside Your Belly Button? канала Science Insider