It takes about 20 seconds for a red blood cell to circle the whole body.
102
The human body contains over a billion miles of DNA.
147
Enamel is hardest substance in the human body.
61
Yawns are more contagious among people with closer relationships.
163
It takes approximately 12 hours for food to entirely digest.
93
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130