It sounds that way from the stories & questions I see. Can the brain be happy then? I see so many people posting with "how can I improve my mom/dad's anger/rage/negativity?" I know this is not a normal part of aging. I also know that dementia patients can start to have behaviors that would be categorized as psychotic if they didn't already have a dementia diagnosis. Is this extreme unhappiness (for lack of a better word) typical as the brain deteriorates?