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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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