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The Paradox of the Dreaming Brain: Why REM Sleep Drains Our Metabolic Reserves
The human brain is a biological marvel of efficiency, yet it is also a glutton for energy. Despite accounting for only about 2% of the average adult’s body weight, the brain consumes roughly 20% of the body’s total oxygen and glucose intake. Even when we are ostensibly "at rest," the brain never truly powers down;…
