I came across your Web site! I was extremely happy to see that there is some one working for this cause. Most people considering the fact that Alzheimer's is incurable do not bother to do anything for it.
 
However, I personally believe that though the disease does not have a cure so far, and God knows if there will be any, if we share our stories with each other, at least it can be prevented to some extent if not cured.
 
My grandfather (mother's father) died of Alzheimer's last year in October. He was in his 90s. His disease started in 2004. He was a man of rules and always led his life in a very disciplined manner. He was very strict and did not want anything to happen against his will. And if something ever went against him, he used to be upset for days. He would stop talking to people and went into depression. All the family members at home acted on what he said. 
 
In our culture, no matter how wrong the parents may be, it is the obligation of the children to respect them. And therefore, in this case, nobody could ever dare to tell him that at times he was wrong.
 
His last days were very painful for him and for those around him.
 
I am telling you all this because no one in my mother's family had this disease before my grandfather, so I dont think it was inherited. And he lived a perfect life; ate on time, exercised regularly, was very careful about his diet. He always remained fit without any medical problems. 

Unfortunately, he got this deadly disease at his late age. I might be wrong, but I assume that he got the disease because of his oversensitive and depressive nature. If he had remained happy all the time and not worried about pity issues, he may not have gotten the disease.
 
I think its really important to be content and happy in order to lead a healthy life always. Remaining depressed most of the time makes you mentally weak and sick.