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
A man has today has been convicted of murdering his seven month old son after smothering him at a flat in Lancashire.
Police in Lancashire are appealing for help to identify a man after a schoolgirl was approached and touched inappropriately.
Council chiefs in Stockport are urging those who are in health risk groups to get the flu jab, as the flu virus has appeared in the town.