👉 Plesiobiosis is a concept in medicine that refers to the relationship between the human body and its environment, where the immune system works together with the gastrointestinal tract (GI) to fight off harmful bacteria and viruses. It involves the body's natural defenses against pathogens, such as the gut flora, working together with the immune system of the digestive system. The concept is based on the understanding that the GI system has a direct connection to the immune system, and both systems work in concert to protect the