Longer rugby careers linked to higher risk of brain injury

Scientists found signs of degenerative disease in professional as well as club players' brains.

A study of former rugby players' brains has found that those who played for longer were more likely to develop a degenerative brain disease.

thought to be caused by repeated head injuries and blows to the head. It slowly gets worse over time and leads to dementia. "It's the shaking and twisting and rotating of the head thousands of times over decades that's likely to cause deep damage in the brain," says Prof Willie Stewart, lead study author from the University of Glasgow.

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