In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
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There are about 1,400 different species of bacteria in your belly button.
10
The human sigh acts as a physiological reset button.
23
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89