As many as one third Americans flush the toilet while they are still on it.
157
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
Males sweat 40% more than females.
104
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
It is estimated that at any one time, 0.7% of the world's population are drunk.
90
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
The Japanese commonly put ketchup on their rice.
16