As a sports fanatic, I am fully aware of the well documented links between head injuries and dementia. Successfully dealing with head collisions and concussion on the field of play could make the difference between a sportsman avoiding suffering with dementia in later life.

Hopefully the early indications from these initial studies, suggesting that saliva testing can be used to diagnose concussion quickly, will prove to be a 'game-changer' in the fight against dementia.