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Body & Brain

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Cornwall Beach

British beach waters harbor low levels of drug-resistant bacteria, researchers find.

Babies

EQUAL SHOT  Every year, slightly more boys than girls are born. But when egg meets sperm, roughly equal numbers of male and female embryos are conceived, a new study finds.

Stephen Strasburg

FOR THE BETTER?  Many baseball pitchers, including Stephen Strasburg of the Washington Nationals, have undergone Tommy John surgery in their arms. While the operation can extend careers, researchers differ on whether the players pitch as well as they once did.

Body & Brain

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