For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
A man's beard grows fastest when he anticipates sex.
239
There are about 255 babies born worldwide every minute.
46
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Only humans shed emotional tears.
331
On average a woman has 4 sexual partners in her lifetime.
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