A week today, 21st September, is World Alzheimer's Day. Dementia is considered 'working age' or 'young onset' when it affects people under 65 years of age. Some facts about working age dementia: It is estimated that there are 42,325 people in the UK who have been diagnosed with young onset dementia. (Ref Dementia UK, 2nd edition 2014, Alzheimer’s Society). They represent around 5% of the 850,000 people with dementia. People with young onset dementia are more likely to be di