What Role Do Your Microbes Play in Making You Who You Are?

How did you become who you are today? Have you always carried around the same personal attributes or have these developed over time? It’s fascinating when we look back and see ourselves 10 years ago, 20 years ago, and beyond, and notice the ways in which we’re changed. But what about those parts of us that have always been there, the microbes. What role exactly do they play and how much credit do they deserve for the way we are today?