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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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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The average person will go on a date at least 100 times before they finally marry.
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Men fall in love faster than women do.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Raj from the Big Bang Theory is married to Miss India.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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