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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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When dragonflies mate, their tails form a love heart.
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