For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
The average person's skin weighs twice as much as their brain.
131
Your thumb is about the same size as your nose.
124
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Chewing gum boosts your brain power.
285