Body & Brain

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depression

DARK DAYS  A controversial new study concludes that major depression does not afflict more people during winter months.

gas-sensing capsule

CAPPED  This 3.5-by-1.2-centimeter capsule can be swallowed to measure gut gases and send its findings to a smartphone. Researchers in Australia tested the device in pigs fed different amounts of fiber.

soccer players

HEADS UP  The brain needs time to recover between brain injuries, a study in mice suggests. The finding may help doctors understand potential injuries to athletes, including soccer players who repeatedly head the ball.

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