People with blue eyes are better able to see in the dark.
153
A hard working adult sweats up to 4 gallons per day.
39
Sociologists have found the worse the economy, the longer the women's skirts are and the better economy, the shorter the skirt.
223
47% of people have a nightmare at least once a month.
186
Only about 2% of the world population has green eyes.
36
Every human spent about half an hour as a single cell.
144
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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