Ever sniffed your belly button and caught a whiff of something foul? Surprise! Hidden lint, trapped sweat, or even a sneaky ...
It’s known as "navel pulling," and involves massaging castor oil on your belly button and abdominal area. To do what exactly?
But no one knew the answer. So for three years he collected his own belly-button lint to find out. And after interviewing friends and analyzing 503 of his own samples, Steinhauser discovered the ...