Vagal control refers to the regulation of physiological processes in the body by the vagus nerve, which is the longest cranial nerve in the body. The vagus nerve plays a crucial role in the parasympathetic nervous system, which is responsible for controlling bodily functions at rest and during relaxation. Research in this area focuses on the interactions between the vagus nerve and various bodily systems, such as the digestive, respiratory, and cardiovascular systems, and how these interactions influence overall health and well-being. Studies have shown that vagal control can impact a wide range of health outcomes, including stress response, inflammation, heart rate variability, and digestion. Understanding vagal control is important for developing strategies to improve health and well-being, as well as for treating conditions such as anxiety, depression, and chronic inflammation.