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Body & Brain

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mouse nerve cells

COMING INTO THEIR OWN  Mouse nerve cells (red) grown in a dish each sport a hairlike filament called a primary cilium (green), which may have many roles in the brain. 

IUD

SHAPE SHIFTERS  Current intrauterine devices, or IUDs, are T-shaped. But previous designs of the contraceptives included curlicues, s-shapes and an ill-fated spiked shield.

woman in labor

PRECONCIEVED NOTIONS  A decades-old idea about how quickly a woman’s labor should progress has not held up in recent studies.

Body & Brain

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