Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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40% of people who are rejected in romantic love slip into clinical depression.
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You burn 26 calories in a one minute kiss.
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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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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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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