9NEWS looks into Alzheimer's--a disease that is the sixth leading cause of death in the U.S.

It is the only major disease in our society with no prevention, no treatment and no cure.

But there is reason for hope, as researchers work to find a way of reversing Alzheimer's effects.

A promising new treatment for Alzheimer's

How studying those with Down syndrome gets us answers about Alzheimer's

With Alzheimer's, hospital stays can be hazardous, even deadly

Family shares struggle with Alzheimer's