Dementia sufferers 'hide diagnosis' because of stigma
21 September 2012 Last updated at 09:13 BST
The latest World Alzheimer Report claims that nearly one in four people with dementia hide their diagnosis because of the stigma attached to it.
It also claims that 40% of people with dementia say they are not included in everyday life.
Dan Papworth is a retired police officer from Ceredigion who was diagnosed with Alzhiemer's a number of years ago.
He spoke to Oliver Hides on BBC Radio Wales' Good Morning Wales programme.