Yawns are more contagious among people with closer relationships.
163
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
Most people turn their music down in the car when finding a street sign to "see better".
34
There are two credit cards for every person in the United States.
2
On average, a person will spend about five years eating during his or her lifetime.
90
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Only about 2% of the world population has green eyes.
36
The world's youngest parents were 8 and 9 and lived in China in 1910.
130