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WASHINGTON (AP) - More than 26 million people worldwide have Alzheimer's disease, and a new forecast says the number will quadruple by 2050.
At that rate, one in 85 people will have the brain-destroying disease in 40 years, researchers from Johns Hopkins University conclude.
The new estimates, being presented Sunday at an Alzheimer's Association conference in Washington, are not very different from previous projections of the looming global dementia epidemic with the graying of the world's population.
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