There are two credit cards for every person in the United States.
2
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
Karl Pillemer, a professor, performed a study on thousands of elderly people and what advice they had about life. On happiness, there was a consensus: “the elders viewed happiness as a choice, not the result of how life treats you.”
13
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191