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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Men who kiss their wives in the morning live five years longer than those who don't.
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When dragonflies mate, their tails form a love heart.
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The average person will go on a date at least 100 times before they finally marry.
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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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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A man's beard grows fastest when he anticipates sex.
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