Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
13
On average women can hear better than men.
170
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
You can only remember 4 things at a time.
31
In a year, the average person walks four miles to make his or her bed.
56
The average American consumes 9 pounds of food additives every year.
6
There are two credit cards for every person in the United States.
2