Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Raj from the Big Bang Theory is married to Miss India.
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Parents receive 1 out of every 5 Valentines.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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The average person will go on a date at least 100 times before they finally marry.
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