Health

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little girl looking at signs

EARLY SIGNS  Exposure to signing before age 3 can boost brainpower in deaf children, a new study suggests.

zika

GOING VIRAL  Zika virus (shown in this false-color transmission electron micrograph) continues to spread across the Americas, and may be linked to a recent rise in birth defects in Brazil.

e-ciggarette

RISKY PUFFS  Many people assume e-cigarettes are a healthier alternative to smoking. But new animal data suggest vaping may pose immune risks — and possibly behavioral and reproductive risks for the children of women who vape during pregnancy. 

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