Head injuries may trigger lasting brain changes - Study

The ongoing trial, with over 600 participants, aims to identify mechanisms heightening risks for dementia or Parkinson's, as TBI is linked to 15 per cent of dementias, while even a single TBI raises Parkinson's risk by more than 50 per cent, the researchers said.

28 Feb 2026 08:03am
Photo for illustration purpose only. - 123RF photo
Photo for illustration purpose only. - 123RF photo

CANBERRA - Preliminary findings from an Australian study indicate that traumatic brain injuries (TBIs), including concussions, may trigger lasting brain changes detectable decades later, even in healthy adults, reported Xinhua.

Researchers observed higher mood dysfunction scores, reduced white matter integrity across multiple brain areas, diminished sense of smell, along with autonomic and gastrointestinal changes among TBI participants compared to controls, said a statement from Australia's Adelaide University recently.

These symptoms are associated with an increased risk of Parkinson's disease later in life, the statement said.

The ongoing trial, with over 600 participants, aims to identify mechanisms heightening risks for dementia or Parkinson's, as TBI is linked to 15 per cent of dementias, while even a single TBI raises Parkinson's risk by more than 50 per cent, the researchers said. - BERNAMA-XINHUA

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