Muslims have begun fasting for Ramadhan - a month of abstinence from food and drink between sunrise and sunset. And later this week, Catholics also begin fasting for 40 days of Lent. But if we look beyond the spiritual or religious reasons, many people also fast for their health and wellbeing. On Today I Learned, we’re answering the question of whether fasting can delay ageing, and is it for everyone? We explore the science behind fasting and calorie restriction, and what beneficial effects these practices have on the body over the short- and long-term.

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