How does cerebral spinal fluid work?

Cerebrospinal fluid (CSF) plays a crucial role in brain function. According to Andrew Huberman on the Huberman Lab, CSF circulates through brain ventricles, nourishing the brain and providing a medium for chemical signals to travel. The ventricles are spaces within the brain where CSF circulates, allowing nutrients to reach brain cells and maintaining a stable environment 1.

CSF also carries chemical information about the body's internal state. For instance, if you inhale a virus or experience an infection, CSF can transport chemical signals indicating the presence of these pathogens. Specific areas in the brain, like the OVLT (organum vasculosum of the lateral terminalis), can detect these signals and trigger immune responses, such as inflammation and fever, to combat the infection 2.