In 2004, the Human Genome Project was completed. The goal of that project was to sequence the entire human genome, ultimately revealing the cause of a majority of ailments in the modern world. Instead what it revealed was that most of us share over 99% of our genetic code, and that 1% difference doesn't seem to explain many of our diseases. So if our own genetics aren't entirely responsible for if we are healthy or sick, what else potentially can be? The answer to that question came shortly after the development of 16s rRNA sequencing technology - technology which allows us, for the first time, ...