Is Alzheimer's disease scary? Is it a vague fear, or is it based on the experience of the disease among relatives or acquaintances? What to do when a close relative is affected by Alzheimer's disease? What are the public authorities expected to do? These are just some of the questions raised, and the analysis of their answers leads us to reconsider this disease, to guide the essential structuring of our care offer. The Pierre Deniker Foundation's ambition is to change the way we look at mental disorders, to give neurodegenerative diseases a different place. The initial results of this major survey are a contribution in this direction.