Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
One human hair can support 3 ounces.
191
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Chewing gum boosts your brain power.
285