Men laugh longer, louder, and more often than women.
61
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
The single biggest predictor of love is proximity.
30
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Most people smile when they are frustrated, according to a study.
15
Babies that are breastfed are more likely to be slimmer as adults than those that are not breastfed.
110
The average American consumes 9 pounds of food additives every year.
6