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Science & Policy

Scientists reveal what seven days of fasting does to the human body

Summary: Scientists found that prolonged fasting triggers major changes throughout the body, but many of the most interesting effects only appeared after about three days without food.

Key points

  • Scientists found that prolonged fasting triggers major changes throughout the body, but many of the most interesting effects only appeared after about three days without food.
  • The results suggest fasting may influence health in ways that go beyond weight loss and could eventually inspire treatments that mimic its effects.

Scientists found that prolonged fasting triggers major changes throughout the body, but many of the most interesting effects only appeared after about three days without food. The results suggest fasting may influence health in ways that go beyond weight loss and could eventually inspire treatments that mimic its effects.

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