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可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。
睡不好的危害
You gain weight
体重上升
Dr. Shah says two specific hormones that regulate eating behavior are affected. "Ghrelin, which increases appetite, is high in people with sleep deprivation," he says. "On other hand, levels of leptin, which lowers appetite, has been found to be low in sleep-deprived people."
Shah医生说有两种荷尔蒙会影响饮食习惯。“胃饥饿素(一种肠道激素)会让人胃口大开，在人们睡觉的时候达到峰值。”还有一种与其相反作用的，瘦素，会让人食欲低下，在睡眠不足的人身上很难找到。
One study showed those who were sleep deprived consumed 300 more calories a day than those who were well-rested. You also may gain weight because your metabolism slows down in order to conserve energy when you're tired.
比起正常睡眠的人，睡眠不足的人要多消耗300卡路里一天。当觉得疲劳的时候，你的新陈代谢系统减慢会帮助你存储能量，也就导致你增重。
【知识点讲解】
On other hand 另一方面
例句：
One one hand, I have no time; on the other hand, I have no money.
一则，我没有时间; 二则，我没有钱。
On one hand I have to work; on the other hand I have many visitors to see.
一方面我必须工作; 另一方面我有许多来宾要照看。
On the other hand, he is usually very dependable.
从另一方面来看，他是非常可靠的。
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