Most people smile when they are frustrated, according to a study.
15
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
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Intelligent people have more zinc and copper in their hair.
233
Males sweat 40% more than females.
104
The world's shortest man measures only 21.5 inches.
73
In 75% of American households, women manage the money and pay the bills.
97