Hi all. My first post. Over the last 40 plus years about twice a year my darling wife has and still suffers with very severe clinical depression. She has voluntarily experienced ECT over the years with some success but not lasting results. She is now taking a cocktail of anti-depressant drugs plus some to help with her Parkinsons symptoms. My (our) problem is that caring for her whilst being very frustrating and tiring is also rewarding as she always after some weeks "clicks" out of it and returns to me at her old self. But of late she has got it into her head that depression is turning to dementia, I find this very worrying. I do not feel that her situation has changed other than the Parkinsons does seem to be getting slowly worse but she is 78yoa and otherwise healthy. Does anyone out there have experience of this changing attitude and if so would they like to comment please. I have discussed this with both her CPN and psychiatrist both of whom agree with me but I cannot get my dear wife to accept that fact. Are there any simple ways I can clarify to her that depression and dementia are two different illnesses and that she should not worry unduly. Carian.