Blood Used by Your Brain

20% of Your Blood is Used by Your Brain
Did you know that nearly twenty percent of your blood is pumped from your heart to your brain? In order to meet the heavy metabolic demands of your neurons, your brain requires a steady flow of blood. The neural activity and blood flow association provides the foundation for brain imaging techniques such as functional magnetic resonance imaging, also known as fMRI. This relationship makes it possible to produce imagery of inferred brain activity.