The brain and the stomach are neurologically connected and they complement and influence each other. Both the brain and the stomach are important organs of the human body. The brain is the organ that regulates the functions of the body and is the highest level of the central nervous system. The stomach is the digestive organ of the human body, which can digest food and promote the absorption of nutrients in food to meet the needs of the body. The brain can command the stomach to digest food and empty it into the intestines to promote the absorption of nutrients from the intestines, and after absorbing nutrients, it can provide energy for the brain. The two influence each other. When there is a situation of large emotional fluctuations, it is easy to lead to sympathetic nerve excitement, resulting in spasmodic pain in the stomach or digestive dysfunction. It is recommended to strengthen nutrition and ensure rest in life. If there is discomfort in the stomach or the brain, it is recommended to seek medical treatment in time and improve the relevant examination.