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Body & Brain

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ANTIBACTERIAL BACKFIRE  Soaps that contain triclosan, a commonly used antimicrobial compound, could actually help disease-causing bacteria colonize the human nose. 

SORTING SMELLS  Odor-detecting neurons in the mouse nose (green and magenta) latch onto certain scents and send signals to precise locations. The neurons each have a diameter of approximately 10 micrometers.

BYE BYE JET LAG  Using mathematical analyses to calculate when users should seek out or avoid light, researchers may help sleepy travelers quickly adjust to new time zones.

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