Number, severity of brain injuries raises dementia risk
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April 11, 2018
SEATTLE (AP) — A large study offers more evidence of a link between traumatic brain injuries and dementia later in life, with repeated injuries and severe ones posing the greatest danger.
Researchers analyzed 36 years of health records of 2.8 million people in Denmark, where a national health system makes it possible to explore connections in a far-reaching way.
Overall, the risk was small. About 95 percent of people who suffered a brain injury never developed dementia.
But a single severe brain injury increased the risk of later dementia by 35 percent compared with a person who never had brai...
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