As we know, the human gut microbiome is also considered as an “organ” since it actually interconected to different systems. Our gut microbes have significant influnences to our mental health; the gut microbes influnences the developments of many mental dieseases, such as depression, anxiety, autism spectrum disorders, and schizophrenia. The gut microbes affect our brains by screcting substances like neurotransmitters dopamine, serotonin, and gamma-aminobutyric acid, or GABA; the microbes also release molecules which will change the neurochemistry. These can cause localized inflammation , whereby immune cell will also relase immune signals to the host for respones. Dysbiosis was one of the major effects that influnce mental health.
The communication of brain and gut microbes are bidirectional. Multiple studies show that brain could alter the release of hormones, which could affect the activities of microbes and what they release.
