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Body & Brain

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injured soccer player

About 20 percent of U.S. adolescents have had at least one concussion. Those teens were more likely to play competitive sports than those who never had a concussion.

tadpole

BUSY BRAIN The still-forming brain of a frog sends important messages to the body. When the brain is missing, the body doesn’t develop properly, a new study suggests.

PET scans

TANGLED The brain of a person with Alzheimer’s disease symptoms (right) is laden with tau protein (red), while a person with no symptoms (left) has little tau.

Body & Brain

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