Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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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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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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You burn 26 calories in a one minute kiss.
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When dragonflies mate, their tails form a love heart.
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Raj from the Big Bang Theory is married to Miss India.
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