Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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40% of people who are rejected in romantic love slip into clinical depression.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Raj from the Big Bang Theory is married to Miss India.
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