For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are about 1,400 different species of bacteria in your belly button.
10
A person can live without food for about a month, but only about a week without water.
156
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.
22
The human body contains over a billion miles of DNA.
147
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92