A man from a village in Berkshire is helping to further research into dementia after he developed symptoms of the condition at the age of fifty-seven.
Philip Albrighton and his wife Jayne are assisting with efforts to improve awareness of dementia and the way it is perceived in the general public.
Dementia is rare in people under the age of 65. However, Philip Albrighton has early onset Lewy bodies dementia.
"I can't drive a vehicle any more. It's hard to think."
Mr Albrighton is taking part in a number of studies through the National Institute for Health Research, aimed at speeding up diagnosis and improving care for dementia patients and their families.
Measures include memory tests and a look into the genetics of dementia.
Watch Juliette Fletcher's report below.
The interviewees are Philip Albrighton, his wife Jayne Albrighton; and Sarra Blackman, a Lead research nurse.