Most people smile when they are frustrated, according to a study.
15
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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Approximately 70,000 people in the U.S. are both blind and deaf!
7
A person swallows approximately 295 times while eating dinner.
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