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What does the brain consist of?

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The brain consists of several elements, primarily nerve cells (neurons) and other supporting cells, all enclosed by a protective Blood-Brain Barrier (BBB). The BBB is crucial for preventing harmful substances from entering the brain, thereby maintaining brain health and function 1.

Additionally, the brain and spinal cord together form the central nervous system, and they originate from a neural tube during development. This tube structure becomes the complex, squishy brain we recognize, along with the elongated spinal cord running down the back 2.

These components and their protective barriers are essential for the brain's diverse and critical functions throughout your lifespan.

Blood-Brain Barrier

Andrew explains the importance of the blood-brain barrier in preventing mutagens from entering the brain and causing mutations. He also discusses the weaker fences in certain areas of the brain that allow substances to pass through more easily.

Huberman Lab

Using Salt to Optimize Mental & Physical Performance | Huberman Lab Podcast #63