Study Title:

Appraising the brain's energy budget.

Study Abstract

In the average adult human, the brain represents about 2% of the body weight. Remarkably, despite its relatively small size, the brain accounts for about 20% of the oxygen and, hence, calories consumed by the body (1). This high rate of metabolism is remarkably constant despite widely varying mental and motoric activity (2).

Study Information

Proc Natl Acad Sci U S A. 2002 Aug 6;99(16):10237-9. doi: 10.1073/pnas.172399499. Epub 2002 Jul 29. PMID: 12149485; PMCID: PMC124895.

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