Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
Yawns are more contagious among people with closer relationships.
163
Forty percent of Americans have never visited a dentist.
33
The average person walks the equivalent of twice around the world in a lifetime
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47% of people have a nightmare at least once a month.
186
The average person will go on a date at least 100 times before they finally marry.
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Half of all Americans over the age of 55 have no teeth.
39