topbrainmyths

The Brain-Health Factor 90% of Adults Aren’t Optimizing

Published On: September 10, 2026Categories: Health & Fitness, Personalized Medicine

Most people see the brain as a separate part of the body, largely unaffected by the happenings in seemingly distant regions like our fat cells, our muscle tissue and immune organs. But one of the most important contributors to brain health and dementia risk runs completely counter to this belief. In this article, I’ll share exactly why your metabolic health is fundamental to your brain health, and some of the most important and cost effective ways to gauge your metabolic health today.

Like it or not, our brains are incredibly dependent on the rest of our bodies, but this is especially the case for energy and oxygen. Without blood flow to the brain, our cognition almost immediately collapses. This is because our brains are almost exclusively dependent on the bloodstream for delivery of energy (primarily glucose) and oxygen to function. With a daily use of roughly 20% of our body’s circulating glucose and oxygen, the brain is perhaps the single most energy-hungry organ in the body relative to its weight.

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