This is the current situation in the UK about dementia:

• dementia affects 5 per cent of the over 65s and 20 per cent of the over 80s
• the proportion of those with dementia doubles every five years
• some 70 per cent of care home clients have dementia.

Projected situation in the UK:

• By 2025 it is estimated there will be more than 1 million people with dementia and more than 1.7 million people by 2050.