The reality alum said her mom found out after reading her diary, admitting “I could never do something like that today” Charles Sykes/Bravo via Getty Kristin Cavallari said she pierced her belly ...
The belly button, it turns out, is one of the least-studied parts of the human body. But one of its great mysteries may now have been solved – why most people have an innie, or concave belly button.
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