We just got our new edition of the National Geographic Magazine and in it there is a short article on dementia. It largely speaks to the dementia caused by head injury from boxing and football or contact sports in which there are head injuries. There is a series of pictures of the brain, one normal, one with the abnormal tau from the head injuries and one with the abnormal tau from ALZ. It is short but interesting..research continues.
Now with so many former athletes getting dementia, we might see added pressure. Sports entertainment is big and no one wants to know their 'idol' will one day die of dementia due to them playing sports.