It was yeast and, later, flies and rodents that provided the first findings about caloric restriction, the intriguing hypothesis that a drastically reduced intake of calories can extend life span.

先是酵母，接着是苍蝇和啮齿类动物提供了有关热量限制的最初发现，激发了大大减少热量摄入可能延长寿命的假设。

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It was yeast and, later, flies and rodents that provided the first findings about caloric restriction, the intriguing hypothesis that a drastically reduced intake of calories can extend life span.

先是酵母，接着是苍蝇和啮齿类动物提供了有关热量限制的最初发现，激发了大大减少热量摄入可能延长寿命的假设。

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