The government has announced a doubling of the funding into research into Alzheimers disease. David Cameron spoke of "a national crisis" posed by the condition and said he would make tackling it a personal priority.
The move has been welcomed today by charities - and by those who have the condition. The video above contains flash photography.
As three quarters of people with Alzheimer's say they feel anxious or depressed here are some key facts about the disease.
Alzheimer's disease is the most common cause of dementia, affecting around 465,000 people in the UK.
Symptoms can include loss of memory, mood changes, and problems with communication and reasoning.
Women are slightly more likely to develop Alzheimer's disease than men.
It is likely that a combination of factors, including age, genetic inheritance, environmental factors, lifestyle and overall general health, are responsible for developing dementia.
Smokers are almost twice as likely to develop the disease as non-smokers.
77% of people withdementia felt anxious or depressed.
Nearly 50% say they've lost friends since their diagnosis and many say they don't feel part of the community.
There simply is not the same provision or quality of service to replace the current centres and the council should oppose these cuts imposed on them by the Coalition Government who should be ashamed of themselves for doing this
– Sue Highton, UNISON Branch Secretary, Sheffield Community Health
Members of the union Unison will stage a protest in Sheffield today as councillors today meet to discuss plans to close three dementia centres in the city. Campaigners against the proposals say the Government should 'be ashamed' of forcing cuts upon the most vulnerable people.
The Council meeting will be held at 2pm in the Town Hall
Primary Care Trusts in East Riding of Yorkshire and Richmond have failed to meet the Government's targets for providing services for memory-related conditions. A national strategy set up in April 2011 said all PCTs in England must set up memory assessment services. 7% of trusts have so far failed.