Alzheimer Symptoms More Condition_symptoms How Long Can Alzheimer's Disease "take" From First Symptoms 'til Complete And Permanent Loss Of Control?

How long can Alzheimer's disease "take" from first symptoms 'til complete and permanent loss of control? - alzheimer symptoms more condition_symptoms

Essentially the question. If one person in 60 is diagnosed with early stages of Alzheimer's disease - How can a long time (max) will be taken until the person loses the last part of the store's ability to live alone, etc.? More than one years, five, ten or twenty years? Thank you!