Around half the people in the North West currently living with Alzheimer's don't actually know they have it.
And just like cancer - the earlier you get a diagnosis, the better the outcome.
Now, scientists at Lancaster University have developed a simple test could mean thousands will get the treatment they need far sooner.
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Breezy and cloudy with patchy rain or drizzle
Scott Quigg will defend his WBA World super-bantamweight title against Hidenori Otake in Liverpool next month.
Milder air but quite cloudy for the rest of the week. Rain trying to approach from the northwest. A fresh westerly airflow