Chocolate Protects Against Alzheimer's, Harvard Study Shows

Here's some sweet health news for chocolate lovers: A daily dose of the sugary treat may help prevent Alzheimer's disease. That's the conclusion of new research at Harvard Medical School that found people who drank two cups of hot cocoa a day had improved memory and blood flow to the brain.

But the benefits only come from certain types of chocolate, which contain high levels of beneficial antioxidants, notes one of the nation's top Alzheimer's experts, Dr. Gary Small, professor of psychiatry and aging. It's also important to know that you can get too much of a good thing.

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