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Brain Mass Energy Demand

Meaning

Brain Mass Energy Demand quantifies the absolute energetic requirement of the brain tissue relative to its physical weight, typically measured as a rate of oxygen or glucose consumption per unit of mass. The human brain, constituting approximately two percent of the total body mass, is responsible for utilizing about twenty percent of the body’s entire resting metabolic rate. This metric underscores the extreme metabolic intensity required to maintain continuous consciousness, complex neural signaling, and overall cerebral homeostasis.