[Source: Science Daily]

A study of twins shows that having a concussion early in life is tied to having lower scores on tests of thinking and memory skills decades later as well as having more rapid decline in those scores than twins who did not have a concussion, or traumatic brain injury (TBI). The study is published in the September 6, 2023, online issue of Neurology®, the medical journal of the American Academy of Neurology.

“These findings indicate that even people with traumatic brain injuries in earlier life who appear to have fully recovered from them may still be at increased risk of cognitive problems and dementia later in life,” said study author Marianne Chanti-Ketterl, PhD, MSPH, of Duke University in Durham, North Carolina. “Among identical twins, who share the same genes and many of the same exposures early in life, we found that the twin who had a concussion had lower test scores and faster decline than their twin who had never had a concussion.”

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