For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The world's shortest man measures only 21.5 inches.
73
By weight, Bone is five times stronger than steel.
417
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The human sigh acts as a physiological reset button.
23
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22