According to a study, women ages 22 to 30 with no children and no spouse earned a higher median income than comparable men in 39 of the 50 largest U.S. cities in 2008.
9
Most people smile when they are frustrated, according to a study.
15
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
It is estimated that at any one time, 0.7% of the world's population are drunk.
90
2% of Europeans lack the genes for smelly armpits.
6