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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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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One in five long-term love relationships began with one or both partners being involved with others.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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