A Single Concussion Can Increase Your Chances Of Developing Dementia

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The link between head injuries and dementia has just grown stronger: A new study of 2.8 million people in Denmark, including those who had and had not experienced a traumatic brain injury (TBI) in their lifetime, found that those with at least one TBI had a 24 percent increased risk of dementia, on average. The average diagnosis age was 81.

The NHS emphasize that this is about increased risk after receiving a TBI, however. The absolute risk of developing dementia throughout your lifetime is very small. Of this sample, only 5.1 percent of those that had a TBI developed dementia, compared to 4.5 percent of non-TBI people that also developed dementia.

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Points: elevates the seriousness of the debate on minimizing the risk of concussions in youth and thruout life (prevention); points to strength of effectiveness of fitness lifestyle, healthy diet, moderation in alcohol use and not smoking as neuroprotective; results aren't easily transfered to other countries, cultures, races, and finally, "It's also an observational study, so no direct cause-and-effect relationships between TBIs and dementia can be definitively described."
— Robert Demichelis II
elevates the seriousness of the debate on minimizing the risk of concussions. yet, It's also an observational study, so no direct cause-and-effect relationships between TBIs and dementia can be definitively described.
— Robert Demichelis II