In 1998, the trust awarded its first major grant of £500,000 to a team led by distinguished scientist Dr Michel Goedert in Cambridge.

[2] In March 2008, author Terry Pratchett, who had the disease, donated one million US dollars to the trust.

[6] In 2017, former Prime Minister David Cameron was appointed president of Alzheimer's Research UK.

The challenge was, these people needed a diagnosis but the National Health Service couldn't deliver at that scale.

This was because of the risks of side effects, few PET scanners to diagnose Alzheimer's and limited skilled professionals to perform lumbar punctures.