How our gut constantly talks to our brain
Our gut, often called our “second brain”, owns 200 million neurons (enteric nervous system), hosts several billion gut bacteria and tract is constantly sending information to our brain, and conversely. But this bidirectional communication can be disrupted when our gut microbiota is impaired and an inflammatory process takes hold. An impairment of the gut-brain axis could be involved in the onset of neuropsychiatric disorders1 such as depression, anxiety, autism spectrum disorders or attention deficit disorders. From then on, the idea emerged of modulating the intestinal microbiota through diet, the administration of probiotics or faecal transplantation 1 to prevent, or even treat, mental health disorders 2.