Moderate-to-severe traumatic brain injury is a known risk factor for diseases that gradually destroy the brain - such as late-onset Alzheimer's disease. Now, a new study links mild traumatic brain injury, or concussion, in people at genetic risk for Alzheimer's to accelerated brain deterioration and mental decline associated with the disease.
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Researchers believe that the findings also highlight the importance of documenting concussion events and their associated symptoms.

Researchers, from Boston University School of Medicine (BUSM) in Massachusetts, and colleagues report their findings - which show promise for detecting the effect of concussion on neurodegeneration - in the journal Brain.

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