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 Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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.
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When dragonflies mate, their tails form a love heart.
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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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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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Speed dating was invented by a Rabbi in 1999.
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