A Strange World of Organisms Lives Inside You, But Not Like You Think
There's a whole world inside your gut, made up of mostly harmless microbes that reside in the gastrointestinal tract. Called the gut microbiome, this dazzling collection of bacteria and other microorganisms has been the source of much attention – linked to a vast array of health conditions, from autism spectrum disorder and diabetes, to depression, Alzheimer's disease, and movement disorders.