As life expectancy extends beyond 80 years in some parts of the world, more people are struggling with brain diseases. For older people, Alzheimer's, Parkinson's, and other conditions become a major impediment to quality of life.

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“As life expectancy extends beyond 80 years in some parts of the world, more people are struggling with brain diseases. For older people, Alzheimer's, Parkinson's, and other conditions become a major impediment to quality of life.”