Half of all Americans over the age of 55 have no teeth.
39
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
54
According to Harris Interactive, 70% of men and 57% of women shower daily.
75
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
90% of people sit at their computer desk slouching, supporting their head with their left hand.
41
In a lifetime, an average person walks the equivalent of 5 equators
177