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An apple a day really could keep the doctor away – as long as you don’t throw away the peel. 有这样一句谚语：一日一苹果，医生远离我，常吃苹果的确有益健康，不过前提是得连皮一块儿吃掉。 The chemical behind the apple skin’s waxy shine is being credited with a host of health benefits from building muscle to keeping the lid on weight. 苹果表皮之所以具有蜡质的光泽全因其含有的某种元素，该成分有益于强健人体肌肉，并且维持健康体重。 Ursolic acid also keeps cholesterol and blood sugar under control, meaning an apple a day could do wonders for all-round health. 这种名为熊果酸的物质同时还可以控制胆固醇和血糖水平，这便可以解释“一日一苹果”所造就的“健康奇迹”。 Researcher Christopher Adams said: ‘Ursolic acid is an interesting natural compound. It’s part of a normal diet as a component of apple peels. 研究者克里斯托弗·亚当斯说：“熊果酸是一种非常有趣的天然化合物，它不仅是苹果皮中所含有的物质，同时也是人们每日健康饮食的一部分。” The importance of apple peel was discovered after Dr Adams, a U.S. expert in how hormones affect the body, set out to find a drug that stops muscles from wasting, keeping pensioners strong as they age and cutting their risk of hard-to-heal fractures. | 
