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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Men who kiss their wives in the morning live five years longer than those who don't.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Couples' personalities converge over time to make partners more and more similar.
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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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