Scientists have found a link between brain injury and dementia. When the brain sustains an injury, non-nerve brain cells are recruited to the injury site to repair the damage. This causes inflammation in the brain, which ordinarily helps repair the injury. The inflammation later goes away. In dementia-related diseases, like Alzheimer’s, brain inflammation does not go away, leading to serious problems. This can also happen with brain injuries that occur one too many times, like those that develop from repeated concussions. Researchers have had good success using anti-inflammatory drugs, which were able to halt the brain damage. This is promising news for soldiers because it means that eventually we will be able to develop a drug they can take immediately after a brain injury that will limit brain damage.

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