Final answer:
The glymphatic system is a waste-clearance system in the brain that functions by removing metabolites and other waste products during sleep. It is widespread among mammals and plays a crucial role in maintaining brain health. Sleep enhances the glymphatic system's clearance process.
Step-by-step explanation:
The glymphatic system is a recently discovered waste clearance system in the brain. It functions by removing metabolites and other waste products from the brain during sleep. This system is widespread among mammals, including humans, and plays a crucial role in maintaining brain health. The glymphatic system works by using the movement of cerebral spinal fluid to flush out waste products, such as amyloid-beta, which is associated with Alzheimer's disease. Sleep is thought to enhance this clearance process, allowing for the efficient removal of waste and potentially reducing the risk of neurological disorders.