The scene was a kind of science court. On trial was the question “Can anything — running on a treadmill, eating more spinach, learning Arabic — prevent Alzheimer’s disease or delay its progression?”

Elise Schoux has been more careful to exercise regularly and eat right as preventive measures since her husband, Bill, learned last year that he has Alzheimer’s. She figures it can’t hurt. “I don’t know what the answers are,” Mrs. Schoux said.

To try to answer that question, the National Institutes of Health sponsored the court, appointing a jury of 15 medical scientists with no vested interests in Alzheimer’s research. They would hear the evidence and reach a judgment on what the data showed.

For a day and a half last spring, researchers presented their cases, describing studies and explaining what they had hoped to show. The jury also heard from scientists from Duke University who had been commissioned to look at the body of evidence — hundreds of research papers — and weigh it. And the jury members had read the papers themselves, preparing for this day.  To Read More

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