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Brain Energy Efficiency

Meaning

Brain Energy Efficiency refers to the ratio of cognitive output, such as focus, memory, and processing speed, to the metabolic resources consumed, primarily glucose and oxygen. Optimal efficiency means the brain can perform complex tasks with minimal energetic expenditure, reflecting robust mitochondrial function and efficient neural signaling. Diminished efficiency often presents clinically as mental fatigue, brain fog, or reduced cognitive resilience. This state is intimately connected to systemic metabolic health and the regulatory influence of key hormones. It is a critical metric for assessing neurocognitive vitality.