Yawns are more contagious among people with closer relationships.
163
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Only 10-20% of the population can wiggle their ears and raise one eyebrow.
22
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
90% of people sit at their computer desk slouching, supporting their head with their left hand.
41
Children's sense of smell is better than adults'.
860
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191