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禁食减肥风靡一时:它对健康有什么好处?
最近科学界对禁食的兴趣源于热量限制研究提出的问题。自20世纪30年代以来,研究表明,让啮齿动物吃低热量的食物可以延长它们的寿命。解释这种效应的假说包括,限制卡路里会减缓生长、降低脂肪摄入或减少由不稳定自由基引起的细胞损伤。
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