The hologenome in brain health and disease.

Summary: Did you know that the bacteria living in your gut might be controlling your brain? For a long time, scientists thought that brain diseases were only caused by our own human genes. Because of this, medicines were made to treat the brain directly. But there is a new idea called the "hologenome." This means looking at our human genes plus the genes of all the tiny microbes living inside us. It turns out, these microbes can change how our brain works using our immune system and digestion. Some brain diseases might actually start outside the brain! This new way of thinking could help us find better treatments that we have been missing.