Brain Matter Really Matters

There are two types of human brain matter: gray matter and white matter. Both play crucial roles in cognition, memory, and overall brain function.

Gray matter exists in the brain and spinal cord. In the brain, it primarily forms the outer layer of the cerebellum and cerebral cortex, while in the spinal cord, it lies in the inner layer. Gray matter contains millions of neurons, which process information. It controls memories, emotions, sensory input, and muscle movements. In other words, gray matter acts as the brain’s processing center.

White matter also appears in the brain and spinal cord. In the brain, it forms the inner layer and connects different gray matter areas. White matter consists of countless thin strands called axons, which act like communication cables, carrying signals rapidly between brain regions. These signals travel at approximately 200 miles per second, allowing the brain to coordinate complex functions efficiently.

Because gray and white matter support nearly every thought, feeling, and movement, protecting your brain is essential. You can maintain healthy brain matter by getting enough sleep, exercising regularly, eating well, and keeping your mind active.

Remember: your brain matter runs everything you do so treat it with care!

Resources:

Healthline, What Are Gray Matter and White Matter, James Roland, July 12, 2024, Medically Reviewed Heidi Moawad, M.D.
HealthLine
Last viewed 20250310

National Library of Medicine, National Center or Biotechnology Information, Neuroanatomy, Gray Matter, Anthony A. Mercadante, Prasanna Tadi, July 24, 2023
National Library of Medicine
Last viewed 20250310

Stanford Medicine, News Center, Different Mental Disorders Linked to Same Brain-Matter Loss, Study Finds, Bruce Goldman, February 4, 2025
Stanford Medicine
Last viewed 20250312

News-Medical, New Medical Life Science, Daily Caffeine Consumption Can Change the Gray Matter of the Brain
News Medical
Last viewed 20250312