“The human microbiome plays a role in processes as diverse as metabolism, immune function, and mental health. Yet despite the importance of this system, scientists are just beginning to uncover which microorganisms reside in and on our bodies and determine what functions they perform. The development of innovative technology and analytical methods has enabled researchers like Dr. Pollard to decode the complex interactions between our human cells and microbial brethren, and infer meaning from the staggering amounts of data 10 trillion organisms create.”