Their findings are revolutionary. Joël Doré, the "adventurer" of the gut microbiota, has established a link between our stomach and chronic or neuropsychiatric diseases ; Harry Sokol has gone even further by showing that the microbiota can heal, notably through fecal microbiota transplants ; and American Kirsten Tillisch has studied the links between our stomach and our brain and, thanks to the innovative methods of integrative medicine, treats patients suffering from abdominal pain.