A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
The average person falls asleep in seven minutes.
115
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
Each year, around 24,000 Americans are bitten by rats!
65
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Most people smile when they are frustrated, according to a study.
15