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Exercise has innumerable health benefits, but losing weight may not be among them. A provocative new study shows that a substantial number of people who take up an exercise regimen wind up heavier afterward than they were at the start, with the weight gain due mostly to extra fat, not muscle. 运动对健康有数不清的益处，但减肥可能并非其中之一。一项富有挑战意味的新研究表明，很多人在开始执行体育锻炼计划后体重反而有所增加，更糟糕的是，增加的这部分大多是多余的脂肪而不是肌肉。 But the study also finds, for the first time, that one simple strategy may improve people’s odds of actually dropping pounds with exercise. 但也正是这同一项研究首次发现了一种可以切实增加人们运动减肥几率的简单策略。 As we all know, the fundamentals of weight loss should be simple. Burn more calories on any given day than you consume and, over time, you will lose weight. Theoretically, we can achieve that desirable condition by reducing the number of calories that we take in through dieting or by increasing the number of calories that we incinerate through exercise. 我们都知道，减肥的基本原理非常简单。只要你每天消耗的热量多于摄入量，随着时间的推移，你就会越来越瘦。从理论上说，通过节食减少热量摄入或通过运动增加热量消耗都能达到上述理想状况。 | 
