In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Parents receive 1 out of every 5 Valentines.
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Two in five people in the world marry their first love.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Wearing red increases attraction.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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Men who kiss their wives in the morning live five years longer than those who don't.
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