Did you know that you have up to ten times as many microbial cells on your body as you have human cells? What are these tiny microbes doing and how did they find their way to you? Rob Knight, PhD, joins our host David Granet, MD, to discuss how these cells that make up our microbiome can impact everything from mood, weight, sleep patterns, allergies and more. Recorded on 04/17/2015. (#29535)