Half of all Americans over the age of 55 have no teeth.
39
Women rate men more attractive if other women are looking and smiling at him.
17
Dutch, on average are the tallest people.
187
Men laugh longer, louder, and more often than women.
61
If you're over 100 years old, there's an 80% chance you're a woman.
143
The world's tallest man reached 8 feet 11 inches at 21.
202
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11