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The Boston Globe

Health & wellness

G Cover

Taking a break from eating

New research looks at short-term fasting to boost healing and fight diseases such as Alzheimer's and cancer

Mark Mattson and Valter Longo eat only once a day during the week, going without any food 23 hours at a time. Wolfram Tetzlaff sits down to a meal only every other weekday. And James R. Mitchell has tried skipping food entirely for several days at a time, though he much prefers juice fasts.

Their wacky eating is not about weight loss. The four are studying the possible benefits of short-term fasting, and figure they should experience it themselves.

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