When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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Kissing an infection-free partner is good for your teeth!
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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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Parents receive 1 out of every 5 Valentines.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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