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Brain cells meant to protect us may be fueling cognitive decline

Source: Latest Science News -- ScienceDaily · Oct 17, 2026 12:44 UTC

Black-and-white close-up of chemistry lab glassware by a window — File photo euthman / Flickr · CC BY-SA 2.0 · Source

The Quick Take

Scientists have uncovered a surprising cause of age-related cognitive decline involving brain cells previously thought to be entirely beneficial. As these cells become dysfunctional, they can produce abnormal amounts of myelin, disrupting nerve fibers and potentially contributing to worsening memory and thinking skills.

Read the full story at Latest Science News -- ScienceDaily

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