Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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.
456
When dragonflies mate, their tails form a love heart.
22
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
The single biggest predictor of love is proximity.
30
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88