People who have a strong friendship possess the ability to communicate with one another through facial expressions.
46
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
Babies crawl an average of 200m a day.
212
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
Humans blink over 10,000,000 times a year!
97
The average single man is one inch shorter than the average married man.
88