There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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