Most people smile when they are frustrated, according to a study.
15
Two in five people in the world marry their first love.
270
You share your birthday with at least 9 other million people in the world.
201
Males sweat 40% more than females.
104
The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
16
There are two credit cards for every person in the United States.
2
