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Stanford Researchers Reveal the Brain as Two Ancient Systems Packed Into One Skull

Summary by WebProNews
Stanford Medicine researchers have discovered that the human brain develops from two distinct progenitor cell lineages rather than a single source. The finding overturns long-held models of brain development and enables new lab models for studying ALS and other brainstem diseases. It also suggests our brain is a composite of two ancient nervous systems joined over evolutionary time.

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A new study led by Stanford Medicine scientists, however, suggests a very different picture: the brain appears to develop from two initially separate populations of cells, which follow parallel paths and create different regions of it.

A Stanford University study has discovered that the human brain is not a single organ, as previously thought, but rather composed of two. This discovery could have significant implications for researching treatments for serious diseases, including amyotrophic lateral sclerosis (ALS). Published in the journal *Nature*, the study shows that the brain is essentially composed of two independently developing nervous systems. First, there is a more pr…

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Scientists at Stanford University have come up with a hypothesis that the brain could come from two ancient nervous systems, which, in evolution, have merged into one structure. According to The Telegraph, researchers have discovered that its different divisions are formed from two populations of the predecessor cells.

·Moscow, Russian Federation (the)
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RTVI broke the news in Moscow, Russian Federation (the) on Sunday, September 20, 2026.
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