We have all heard of the benefits of intermittent fasting and longevity. In this review, Longo and colleagues discuss the latest cellular and organismal literature involving intermittent and periodic fasting, and their effect on ageing. Intermittent fasting is defined as fasting that lasts 12-14 hours and is repeated every 1-7 days, whereas periodic fasting lasts 2-7 days and is repeated every month or less. The authors then go on to discuss the therapeutic benefit of these fasting methods on age-related pathologies.

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