Hi i wondered if there if anyone can help. Today i was told that my sister had alzheimers disease. My sister is 41 years old and she has been ill for quite some time the consultant says that she is between moderate and severe. They have started her on some medication and we was told that we would be refered to a CPN and thats about it. Oh and come back in 6 weeks to see if its genetic. What a day !!!! Can anyone shed some light on the stages please.