The intestinal tract has an influence on the immune system and the emotional centre
Due to its shape, the functionality and importance of our digestive system is often underestimated. However, it has a massive impact on our physical and mental health. About 80 percent of our immune defence cells live in our intestinal tract. It holds trillions of microorganisms, that help to provide essential nutrients to our body. The intestine is surrounded by a plexus: Neurons in the intestine are similar to the neurons in our brain and spinal cord.
Till we turn 75 years old our intestine has been deviding around 30 tones of food and 50,000 liters of liquid into nutrients. It needs around 20 hours to fully digest the things we consume. In the small intestine the food is being devided into nutrients, vitamins and minerals. These travel through the intestinal wall into our body. The remains get to the colon, where water gets extracted before they are finally excreted in the rectum.