Probiotics might help your depression. Surprised? I sure was when I reviewed this article — so let’s dig into the data. Microbiome refers to the full array of microorganisms (the microbiota) that live on and in us. We’re just discovering how useful our “natural and living” bacteria can be to our health, and when disrupted can cause disease. Many people with irritable bowel syndrome suffer from an imbalance in their gut which contributes to their discomfort. We’ve just started