Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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Two in five people in the world marry their first love.
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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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Men who kiss their wives in the morning live five years longer than those who don't.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
The typical person spends about 600 hours having sex between the ages of 20 and 70.
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