Gut-brain axis — how do the intestines affect the brain?

Gut-brain axis

The intestines and the brain communicate bidirectionally via the vagus nerve, the hormonal system and the immune system. The gut microbiota produces about 90% of the body's serotonin.

Impact on mental health

Studies show that disturbances of the gut microbiota can contribute to depression, anxiety and cognitive disorders. An appropriate diet and probiotics can support mental health.