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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Mostly dry overnight. Rain from the west by the end of Wednesday
A man who carried out the "sadistic" murder of his baby son because he could not stand him crying has been jailed for life.
Seven friends are walking over 150 miles from Crewe to the Stadium of Light to raise funds for Bradley Lowery. They aim to raise over 1500.