What is the function of brain salt water?

Brain salt water, or cerebrospinal fluid (CSF), serves several critical functions in the central nervous system. It provides a protective cushion for the brain and spinal cord, helping to absorb shocks and reduce the risk of injury. Additionally, CSF facilitates the circulation of nutrients and the removal of waste products, maintaining a stable environment for neural function. It also plays a role in regulating intracranial pressure.