Most people smile when they are frustrated, according to a study.
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40% of people who are rejected in romantic love slip into clinical depression.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Children grow faster in the springtime than any other season during the year.
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More redheads are born in Scotland than in any other part of the world.
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Touching a teddy bear can make people feel less lonely.
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Babies cry but they don't produce tears until one to three months after birth.
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