Alzheimer's disease (AD) is the sixth leading cause of death in the United States, affecting one in nine seniors — at least, we think. The only way doctors can diagnose the disease beyond a shadow of a doubt is with an autopsy. That's why researchers are hard at work developing tests that can not only definitively diagnose the disease, but catch it when there's still a chance to help.
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Alzheimer's and The Brain
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Key Facts In This Video
Dementia involves a decline in cognitive skills used to perform everyday activities. 60-80% of dementia cases are Alzheimer's disease. 02:22
Here's how chromosome 21 may play a role. 09:19
Physical activity, a heart-healthy diet, learning a second language, being social, protecting your head, and intellectual activities all may lower your risk for AD. 12:19
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