Two in five people in the world marry their first love.
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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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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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40% of people who are rejected in romantic love slip into clinical depression.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Parents receive 1 out of every 5 Valentines.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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