What if I told you that you are never truly alone. I don't just mean that in the hippie hallmark sense of it, but on a biological level, human beings are vessels for trillions of microbes. Recent research by the National Center for Biotechnology Information estimated that the average person has around 30 trillion human mamalian cells and around 39 trillion microbial cells.That's right. You are outnumbered in your own bodies at this point. We should be charging rent right now.These little guys do earn their ...