A hard working adult sweats up to 4 gallons per day.
39
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
On average, a person will spend about five years eating during his or her lifetime.
90
The average woman uses her height in lipstick every 5 years.
146
Only 2% of the Earth's population are natural redheads.
13
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11