A hard working adult sweats up to 4 gallons per day.
39
Yawns are more contagious among people with closer relationships.
163
More than half the population of Kenya is under the age of 15.
71
Nearly 10% of American households dress their pets in Halloween costumes.
36
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
Only 10-20% of the population can wiggle their ears and raise one eyebrow.
22
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63