New techniques to help identify Dementia earlier

The most common form of dementia is Alzheimer's, accounting for about two thirds of cases, but it's currently impossible to detect what form of dementia someone has while they're alive. While we are not anywhere near a cure, the ability to deal it earlier would still be useful. 

http://www.theguardian.com/science/head-quarters/2014/jul/21/detecting-dementia-dignity-alzheimers