Yawns are more contagious among people with closer relationships.
163
The average person laughs 13 times a day!
108
Only about 2% of the world population has green eyes.
36
Intelligent men tend to be more sexually faithful.
31
Over 98 percent of Japanese people are cremated after they die.
54
It is estimated that at any one time, 0.7% of the world's population are drunk.
90
The Japanese, on average, are the shortest people.
320