Body & Brain

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astrocytes

HELPING HAND  Nearby astrocytes help move electrical signals along nerve cells, a new study reveals. 

Dust!

PLUMP PARTICLES   Fats lurking in house dust can activate a protein in human cells that researchers think plays a key role in obesity.

ebola vaccine

PROTECTIVE JAB  A study of more than 7,000 people in Guinea shows that an Ebola vaccine guards against the lethal virus.

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