Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Poor eyesight (myopia) is associated with higher IQ.
232
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Chewing gum boosts your brain power.
285
The average person's skin weighs twice as much as their brain.
131
The human body contains over a billion miles of DNA.
147
When you take a step, you are using up to 200 muscles.
886
One human hair can support 3 ounces.
191