- Associated Press - Monday, July 18, 2011

PARIS (AP) - A big study in older veterans raises fresh concern about mild brain injuries that hundreds of thousands of American troops have suffered from explosions in recent wars. Researchers say even concussions seem to raise the risk of developing Alzheimer’s disease later in life.

The results challenge the current view that only moderate or severe brain injuries pose a dementia risk.

The study involved nearly 300,000 veterans 55 and older receiving care through the U.S. Veterans Health Administration. Those who had suffered a traumatic brain injury, ranging from concussions to skull fractures, were more than twice as likely to develop dementia, the government-led study found.

The work was discussed Monday at an Alzheimer’s conference in Paris.

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