Excerpt
GWEN IFILL (Newshour): New research suggests there may be some good news in the struggle against dementia.
Two recently released studies show severe memory loss declining among healthier and better educated populations. In England and in Wales, dementia rates over the last two decades have dropped by 25 percent among those 65 and older.
And in Denmark, the percentage of elderly whose cognitive abilities were severely impaired also dropped between 1998 and 2010.
In the United States, about five million people have Alzheimer's disease, but that number is expected to rise sharply as baby boomers age.
For more, we're joined by Dr. Murali Doraiswamy, director of the Neurocognitive Disorders Program at the Duke University School of Medicine.
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