What is the main function of the brain stem?

Brainstem is an important part of the central nervous system, located below the brain, in front of the cerebellum, its main function is to maintain individual life, including heartbeat, breathing, digestion and other important physiological functions. The following are the main functions of the brainstem: 1. Regulate breathing and heartbeat: There is a center in the brainstem that controls respiration and heartbeat, which can regulate the depth and frequency of respiration, as well as the speed and rhythm of heartbeat, and maintain the normal operation of the body. 2. Regulate body balance: The vestibular nucleus in the brainstem cooperates with the cerebellum to sense the position and movement of the body and regulate the balance and posture of the body. 3. Regulate the secretion of digestive fluids such as saliva and gastric juice: The visceral motor nucleus in the brainstem can regulate the secretion of digestive fluids such as saliva and gastric juice, and promote the digestion and absorption of food. 4. Regulate sleep and wakefulness: The ascending excitation system of the reticular structure in the brainstem can maintain the excitation state of the cerebral cortex and regulate the sleep and wakefulness cycle. 5. Regulate visceral activities: The visceral sensory nucleus in the brainstem can sense the sensory information of the internal organs and regulate the rhythm and secretion of the internal organs. It should be noted that the brainstem is the life center of the human body. Brain stem injury or lesion may lead to serious consequences, even life-threatening. Therefore, it is very important for the treatment and prevention of brainstem diseases. If symptoms of brainstem disease occur, seek medical attention in time for detailed examination and diagnosis, and receive professional treatment.