One out of 20 people have an extra rib.
66
You mostly breathe from only one nostril at a time!
75
Pain travels through the body at 350 feet per second!
23
By weight, Bone is five times stronger than steel.
417
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Taphephobia is the fear of being buried alive!
44
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36