Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
973
Most people smile when they are frustrated, according to a study.
15
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
In Haiti, only 1 out of every 200 people own a car.
23
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
According to a study, women ages 22 to 30 with no children and no spouse earned a higher median income than comparable men in 39 of the 50 largest U.S. cities in 2008.
9