Sleep as a Sentinel

"Sleep as a Sentinel" describes how sleep functions as a vigilant process that monitors and maintains our health. During sleep, the brain and body assess ongoing threats, repair damage, and regulate vital functions, ensuring we stay alert and resilient when awake. It acts like a dedicated sentinel—continuously safeguarding our well-being—by clearing out toxins, supporting memory consolidation, and restoring energy. Proper sleep quality ensures this sentinel role is effective, whereas poor sleep can impair these protective functions, increasing vulnerability to illness and cognitive decline.