Human hair and fingernails continue to grow after death.
7
The average sperm cell swims at 8 inches per hour.
4
By weight, Bone is five times stronger than steel.
417
It takes approximately 12 hours for food to entirely digest.
93
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Enamel is hardest substance in the human body.
61