Yawns are more contagious among people with closer relationships.
163
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
Intelligent men tend to be more sexually faithful.
31
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
The world's shortest man measures only 21.5 inches.
73
A hard working adult sweats up to 4 gallons per day.
39
Over 50% of lottery players go back to work after winning the jackpot.
71
