40% of people who are rejected in romantic love slip into clinical depression.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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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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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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The average person will go on a date at least 100 times before they finally marry.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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