Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
The average person will go on a date at least 100 times before they finally marry.
33
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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