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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40% of people who are rejected in romantic love slip into clinical depression.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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A man's beard grows fastest when he anticipates sex.
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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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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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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