Alzheimers

It helps so much to chat within a support group for Alzheimers.  Dave has vascular dementia which seems not as bad as Alzheimers.  His cognitive abilities have slowed , taking a long time to answer questions but he still knows my name.  As I listen to others in the group, I can't help but think that I have it easy.  Dave is not that bad.  Then I wonder, is he headed that way?