The accessible technology, say researchers, opens the door to wider screening and more prompt intervention for Alzheimer's disease.

While the test itself cannot be used alone to make the diagnosis of Alzheimer’s disease, he said it’s a major tool that can help screen and find the underlying cause for memory loss symptoms.

A blood test for insulin resistance (a hallmark of diabetes) may offer clues about the speed of memory loss for people with early Alzheimer’s disease.