A person can live without food for about a month, but only about a week without water.
156
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There's 100 trillion good bacteria living in your body.
17
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
