What a Blue Zone heart doctor eats every week for brain health — including 1 supplement

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In Loma Linda, California, there's a group of Seventh-Day Adventists who tend to live and thrive for up to 10 extra years beyond their fellow Americans. Not all of them make it to 100, but they do tend to enjoy relatively good health for longer than most people in the US. That's why it's known as a "Blue Zone."