The brain deteriorates with disease, but the mind does not. The mind cannot get diseased. Medical Journals attest to this.
Would you further your thinking on this point of a separation between the mind and brain?
From the definition that you offered of the mind, in contrast to this post it would seem Alzheimer then would not effect the intellect, feelings, emotions, ....
How then, in your view, does not brain health effect mental health?
Are you in fact stating that when a person is in the midst of a grand-mall seizure they are not intellectually, mentally, emotionally... effected?