You can only remember 4 things at a time.
31
Yawns are more contagious among people with closer relationships.
163
Half of all Americans over the age of 55 have no teeth.
39
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131
Forty percent of Americans have never visited a dentist.
33
The average person walks the equivalent of twice around the world in a lifetime
69
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170