Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Raj from the Big Bang Theory is married to Miss India.
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Speed dating was invented by a Rabbi in 1999.
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Wearing red increases attraction.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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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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