Intelligent people have more zinc and copper in their hair.
233
You can only remember 4 things at a time.
31
Two in five people in the world marry their first love.
270
People who have a strong friendship possess the ability to communicate with one another through facial expressions.
46
Every human spent about half an hour as a single cell.
144
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
