Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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40% of people who are rejected in romantic love slip into clinical depression.
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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.
456
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44