Very big risk of dementia after concussion

A new research done in America concluded that headaches, even without causing loss of consciousness, can cause brain damage, resulting in or accelerating cognitive decline and dementia.

Dementia is thus added to the long list of possible complications following a concussion, as shown by the four-year study of nearly 358,000 US veterans with an average age of 49 years, of whom 54% were injured in their head or military or political life.

According to the study, the risk of subsequent dementia is more than twice as high after a head trauma.

The researchers, led by Professor of Psychiatry and Epidemiology, Deborah Barnes, of the University of California, San Francisco, who published in the American Journal of Neurology “JAMA Neurology,” found that a concussion without loss of consciousness increases an average of 2.4 times the probability dementia in the future.

The risk of dementia is slightly higher (2.5 times) if the concussion is accompanied by a loss of consciousness and almost four times in the case of the most serious head injuries.

“There is something in head injuries that can accelerate the development of neurodegenerative conditions,” said Professor of Neurology and Psychiatry, Christine Yafe, although he said the cause of the problem was not clear, so the subject needs further study.

Last month, other researchers had linked the concussion with an increased risk of developing Parkinson’s disease.