Enamel is hardest substance in the human body.
61
Your heart will pump about 212 million liters in its lifetime.
26
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Every human spent about half an hour as a single cell.
144
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
One human hair can support 3 ounces.
191