The intestines are most likely the organ with the strongest influence on our wellbeing. They make themselves felt when we are nervous or frightened, when we suffer from food intolerance or when we have eaten spoiled food. And pathogens that completely mess up our digestion put us out of action for days. The intestines of an adult are a very wide field: They have a total area of 32 square meters that are inhibited by countless microorganisms. Read more about the insides of our multifaceted insides in our Topic of the Month.