Most people smile when they are frustrated, according to a study.
15
Forty percent of Americans have never visited a dentist.
33
Only 2% of the Earth's population are natural redheads.
13
Women end up digesting most of the lipstick they apply.
110
You will experience the billionth second of your life when you are 31 years old.
21
A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
51