Why is sleep considered a critical factor in the body's ability to clear accumulated waste?

Answer

The body enters a repair mode during rest that directs increased blood flow to the liver and kidneys

During periods of restful sleep, the physiological priorities of the body shift significantly. The system transitions into a repair and maintenance mode, during which resources are allocated to internal cleaning processes. A major part of this shift includes increasing the blood flow directed toward the liver and kidneys, allowing these organs to process accumulated waste and environmental residues much more effectively than during the active waking hours. Chronic sleep deprivation can therefore inhibit this essential restoration phase, leaving toxins in the system longer.

Why is sleep considered a critical factor in the body's ability to clear accumulated waste?
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