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Severe concussion in your 20s increases risk of dementia by more than two thirds, study warns | The Independent

‘Efforts to prevent traumatic brain injury in younger people may be inadequate considering the huge and growing burden of dementia’

Suffering a severe concussion in your twenties increases the risk of developing dementia in the next 30 years by more than two thirds, a major study has warned.

After one of the largest ever investigations into the link between traumatic brain injury (TBI) and cognitive decline in later life, Danish and US researchers concluded that the younger a person was when sustaining a head injury, the higher the risk of developing Alzheimer’s and other forms of dementia.

They looked at the health records of 2.8 million people over 36 years and found that individuals who sustained a TBI in their 20s were 63 per cent more likely to develop dementia in the next three decades than someone who did not sustain one.

But if they experienced the same head injury in their thirties, the risk over the same time period was 37 per cent.

A TBI is classified as a blow to the head which disrupts the normal functioning of the brain. The leading causes include falls, motor vehicle accidents and assaults.

Concussion is classed as a mild TBI.

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Sorgente: Severe concussion in your 20s increases risk of dementia by more than two thirds, study warns | The Independent

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