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
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There's 100 trillion good bacteria living in your body.
17
The human brain uses approximately as much energy as a 10 watt light bulb.
120