Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The average person's skin weighs twice as much as their brain.
131
Chewing gum boosts your brain power.
285
Every year your body replaces 98% of your atoms.
119
Your thumb is about the same size as your nose.
124
The human body contains over a billion miles of DNA.
147
If you are cold you are more likely to be hungry because you use energy to keep warm.
143