![](https://www.diabetesnews.com/wp-content/uploads/2014/03/brain-wedden-2009-150x150.jpg)
When news about a startling new insight into the cause of Alzheimer’s disease first emerged in 2005, it was highly speculative. But now the evidence for it has become very strong: Alzheimer’s is a form of diabetes, and the name being given to it is type 3.