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flag Traumatic brain injuries may cause lasting brain changes linked to higher dementia and Parkinson’s risk, a new Australian study finds.

flag A new Australian study led by Adelaide University finds that traumatic brain injuries, including concussions, may cause lasting brain changes detectable decades later, even in healthy adults. flag Researchers observed higher mood dysfunction, reduced white matter integrity, diminished sense of smell, and autonomic and gastrointestinal issues in those with a history of TBI. flag These changes are linked to a greater risk of Parkinson’s disease and dementia, with TBIs tied to 15% of dementia cases and a single injury increasing Parkinson’s risk by over 50%. flag The ongoing study involves over 600 participants and aims to uncover the biological mechanisms behind long-term neurological decline.

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