This is a very interesting course about the microorganism present in your gut.Imagine if there were an organ in your body that weighed as much as your brain, that affected your health, your weight, and even your behavior. Wouldn’t you want to know more about it? There is such an organ — the collection of microbes in and on your body, your human microbiome. Welcome Citizen Scientists! We're very pleased to have you join us on an exploration of the human microbiome. This is a fascinating area of study, and we hope you will find this six-module course worthwhile. Each module's content will be presented in similar fashion; our team will introduce topics by way of pre-recorded video lectures interspersed with guest interviews by subject matter experts. Module 1 will provide a broad overview about microbes and their diversity on earth and in the human body. In this module, we will dive into the fundamentals of how we study the human microbiome. We highlight recent advances in microbiome research methods and take you on a tour of the Knight lab. Please keep in mind, that Modules 2 and 3 are meant to provide a glimpse into our world of data generation and analysis. Modules 4, 5, and 6 will be less technical and provide a broad overview of fascinating research on the human microbiome. Stick with us! This module highlights the basics of generating and analyzing microbiome data. We will also discuss how computational scientists are revolutionizing the development of tools for analyzing large, complex biological data sets and show you some of the cool ways that we visualize data! This module will help you understand data plots in later modules, but do not get discouraged if the material here is too technical, a full understanding is not required to complete the course! Now that we've given you some background about the methods we use to analyze microbial data, it's time for us to talk more about recent discoveries in microbiome research. This module will focus on the main factors impacting the gut microbiota as well as the influence of the gut microbiota on nutrition and gut health. This is the fun part, so get excited! You're more than halfway through the course! We hope you've been learning lots of new, exciting things about the human gut microbiota! In this module, we'll shift the focus from nutrition and gut health to the rest of your body. How do your gut microbes and your immune system interact? What about your nervous system? Does the gut microbiota play a role in allergies and stress? We will wrap up the course in this module by discussing what's in the American Gut. Rob will walk us through results from the American Gut Project and compare results from Jeff Leach and Michael Pollan. We will also hear from Michael Pollan on the importance of microbiome research and how it has changed the way he thinks about his health and what he eats. CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. As one of 34 U.S. public institutions in the prestigious Association of American Universities (AAU), we have a proud tradition of academic excellence, with five Nobel laureates and more than 50 members of prestigious academic academies. UC San Diego is an academic powerhouse and economic engine, recognized as one of the top 10 public universities by U.S. News and World Report. Innovation is central to who we are and what we do. Here, students learn that knowledge isn't just acquired in the classroom—life is their laboratory.