Hello — I just read your definition of “stages” with great interest. I’ve found the 7 often-used stages to be lacking. My story in brief: my darling husband of 22 years was diagnosed with vascular dementia 1 yr ago. He is 81. He has type2diabetes, a pacemaker but otherwise is in ok health. His brain mri, however, was “teeming” with micro infarcts. Some days he looks so fragile and is so “out of his head” ; then he can be fairly “like himself”. What stage is that? Barbara