Would you want to know?

Would you want to know if, a decade from now, your brain will begin to deteriorate?

Even if you can't do much to stop it?
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The questions sound like a science-fiction brainteaser. But they became real with the announcement this week that researchers may be able to predict Alzheimer's disease nearly a decade before symptoms appear.

Experts say predicting illness raises ethical questions for doctors and societal questions about insurance, workplace discrimination and privacy.

Would I want to know that in 5 years I wouldn't remember anything, and would be lost and alone in the world? Yes, I would, because I don't think I'd want to let myself get that far.

Would you want to know if Alzheimer's is coming?