Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
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Men who kiss their wives in the morning live five years longer than those who don't.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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You burn 26 calories in a one minute kiss.
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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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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Research has shown that allowing chocolate to melt in your mouth produced brain and heart rate activity that was simliar to - and even stronger than - that produced with passionate kissing.
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