'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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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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A man's beard grows fastest when he anticipates sex.
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