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Eyes and nose window to early detection of Alzheimer's?

Research shared at a major international conference suggests your sight and smell may be the key to early detection of Alzheimer's, even before symptoms surface. Computer programs that boost the brain's processing speed could also help delay the onset of the disease. Dr. David Agus joins "CBS This Morning" to discuss the study's findings and measures to delay Alzheimer's disease and dementia, including a computer game.
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