Babies cry but they don't produce tears until one to three months after birth.
238
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
Yawns are more contagious among people with closer relationships.
163
Every workday, 6.7 million people commute to Manhattan!
26
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
47% of people have a nightmare at least once a month.
186