The human brain consumes more energy during intense mental work
the verdict
SUPPORTED
the evidence backs this
confidence 86/100
Neuroimaging studies confirm that engaging in intense mental work and cognitive tasks significantly increases the brain's metabolic demands, specifically elevating glucose consumption and regional oxygen uptake.
Evidence for · 2
Reconfiguration of functional brain networks and metabolic cost converge during task performance
2020 · cited by 70
Paper 1 demonstrates that task engagement and complex cognitive task performance elicit a marked increase in glucose consumption and functional brain network reorganization.
See more details
More for · 1
Enhanced cerebral oxygenation during mental and physical activity in older adults is unaltered by amnestic mild cognitive impairment
2025 · cited by 2
Paper 9 shows that mental arithmetic challenges increase metabolic demands and oxygen content in the prefrontal cortex.