People who suffer a traumatic brain injury -- occurring when an external force injures the brain -- may be at increased risk of developing dementia even after 30 years says a study. A traumatic brain injury also known as intracranial injury is the leading cause of death and disability worldwide especially in younger individuals and has also been associated with the risk of dementia in older age. The researchers found that the risk of a dementia diagnosis was highest during the first year after the injury. During the first year people who had suffered a traumatic brain injury were four
