Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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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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Parents receive 1 out of every 5 Valentines.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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