Two in five people in the world marry their first love.
270
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
Babies cry but they don't produce tears until one to three months after birth.
238
Every human spent about half an hour as a single cell.
144
Women who read romance novels have sex twice as often as those who don't.
101
On average, men's noses are 10% larger than women's.
12
According to Harris Interactive, 70% of men and 57% of women shower daily.
75
Men laugh longer, louder, and more often than women.
61