Recent analysis reveals when probiotics really help and when they don't, amid the boom in improving digestion and overall health.

Colorado researchers think they might be able to help veterans with traumatic brain injury and PTSD by improving the health of their gut microbiome. Dr. Lisa Brenner, a clinical research psychologist ...

Earlier this week, researchers from the Human Microbiome Project published a flurry of scientific papers concerning those 90 percent of the cells in our bodies that are the commensal bacteria who live ...

The human digestive tract houses trillions of microorganisms. This complex ecosystem weighs approximately 4 pounds and contains more bacterial cells than human cells in your entire body. Once ...