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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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