Intelligent people have more zinc and copper in their hair.
233
The first foreigner to become a samurai was an African slave.
26
Most people smile when they are frustrated, according to a study.
15
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
In a lifetime, an average person walks the equivalent of 5 equators
177
A person can live without food for about a month, but only about a week without water.
156