MRI of a brain with A.D. (left) and a normally aged brain Image credit: NASA
It is estimated that around 4.5 million people in the US are currently living with Alzheimer's and the disease is one of the leading causes of death, accounting for tens of thousands each year. There has been no definitive way of diagnosing the disease on living patients so doctors have had to rely on medical histories, administering physical exams, and neuropsychological assessments. Now, a team of researchers in Massachusetts has developed a way of examining brain tissue with near-infrared light to detect signs of Alzheimer's disease.
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