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.
More top news
Do be aware that a widespread frost on Sunday night could linger until Monday lunchtime, as well as icy stretches in places
Frosty overnight with occasional snow showers continuing into Monday. Widespread frost could linger until Monday lunchtime
A sound engineer and friend of the Warrington band Viola Beach has paid tribute to them. The band died following a car crash in Sweden.