Men fall in love faster than women do.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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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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40% of people who are rejected in romantic love slip into clinical depression.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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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 dragonflies mate, their tails form a love heart.
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