Source: nia.nih.gov | Repost Duerson Fund 11/9/2020 –
Concussions are the most common form of mild brain injury, affecting over 42 million people worldwide annually. Their long-term risks — especially for athletes and members of the military — are well documented, with studies showing possible connections to neurodegenerative conditions like chronic traumatic encephalopathy and Alzheimer’s disease.
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To explore the long-term effects of mild brain injuries, researchers led by members of the Brain Aging and Behavior Section of the NIA Intramural Research Program (IRP) tracked MRI and PET brain scan data over time from 51 older adult participants in the Baltimore Longitudinal Study of Aging who had a concussion about 20 years earlier and compared results to 150 participants with no concussion. The research team also compared long-term results from neuropsychological tests for both groups to detect any changes in cognitive performance over time.