Textbooks may have misdrawn this basic brain structure for 100 years

Scientists discovered that brain-cell axons may not be smooth tubes as textbooks have shown for more than a century, but instead naturally resemble strings of tiny pearls. Those pearl-like structures can change with neural activity and may help control how quickly electrical signals travel through the brain.

Officials and experts continue to monitor developments closely as the situation unfolds. Communities affected by the story are watching for further updates in the days ahead. Analysts say the implications could extend well beyond the immediate headlines, with policymakers and industry leaders expected to respond in the coming weeks.

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