Yawns are more contagious among people with closer relationships.
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A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Most people turn their music down in the car when finding a street sign to "see better".
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Women mature much faster than men.
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There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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35% of the people using personal ads for dating are already married!
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