When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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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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One in five long-term love relationships began with one or both partners being involved with others.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Two in five people in the world marry their first love.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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