Yawns are more contagious among people with closer relationships.
163
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
The average bra size today is 36C. Ten years ago it was 34B.
266
Every human spent about half an hour as a single cell.
144
Babies cry but they don't produce tears until one to three months after birth.
238
Forty percent of Americans have never visited a dentist.
33
A hard working adult sweats up to 4 gallons per day.
39
Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18