A baby born too soon continues to develop and grow inside an incubator at the neonatal ward of the Centre Hospitalier de Lens in Lens, northern France. Philippe Huguen/AFP/Getty Images hide caption

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Philippe Huguen/AFP/Getty Images

A Growth Factor Heals The Damage To A Preemie's Brain — In Mice

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A technique called optogenetics is being used in the laboratory to observe and control what brain circuits are doing in real time. Henning Dalhoff/Getty Images/Science Photo Library RM hide caption

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Henning Dalhoff/Getty Images/Science Photo Library RM

Experimental Tool Uses Light To Tweak The Living Brain

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Bartender Matt Carucci says he rarely feels safe biking in the city but often rides without a helmet anyway. "There are a lot of other ways to hurt yourself," he says. John Rose/NPR hide caption

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John Rose/NPR

The most common cause of brain injury in premature infants is a lack of oxygen in the days and weeks after birth, researchers say. Ibrahim Usta/AP hide caption

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Ibrahim Usta/AP

Why Brain Injuries Are More Common In Preemies

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Karen Butler could get her American accent back with intensive speech therapy, but she likes her new one. Jane Greenhalgh/NPR hide caption

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Jane Greenhalgh/NPR

A Curious Case Of Foreign Accent Syndrome

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