介绍： This is Scientific American — 60-Second Science. I'm Karen Hopkin.
Few things are more satisfying than sleeping late on weekends. But though the extra z's may improve your mood, they do not appear to improve your health. Because a new study shows that so-called "recovery sleep" cannot reset the body's metabo...

介绍： This is Scientific American — 60-Second Science. I'm Karen Hopkin.
Few things are more satisfying than sleeping late on weekends. But though the extra z's may improve your mood, they do not appear to improve your health. Because a new study shows that so-called "recovery sleep" cannot reset the body's metabolic clock...and may actually lead to some serious health issues.
"Sleep loss can impact a range of physiological systems. It can increase our risk for cardiovascular disease, it can cause weight gain, it can decrease insulin sensitivity, so it can increase our risk of diabetes...."
Christopher Depner, an assistant professor in the department of integrative physiology at the University of Colorado, Boulder.
"And this can happen, depending on what you're looking at, this can happen as quick as just one or two nights of not getting enough sleep."
A lot of us shut off the alarm on Saturday and Sunday. But we go right back to burning the candle at both ends once the workweek begins.

这里是科学美国人——60秒科学。我是凯伦·霍普金。
没有什么比周末睡懒觉更令人满足了。但是，尽管额外的睡眠或许会改善你的情绪，但其似乎不会改善你的健康。因为一项新研究表明，所谓的“补觉”不能重置身体的新陈代谢时钟，而且还可能导致一些严重的健康问题。
“睡眠不足会对一系列生理系统造成影响。睡眠不足会增加我们患心血管疾病的风险，会导致体重增加、胰岛素敏感性降低，继而增加我们患糖尿病的风险……”
科罗拉多大学博尔得分校的整合生理学系助理教授克里斯托弗·德普纳说到。
“发病情况取决于你所关注的疾病，最快可能会发生在睡眠不足的一两个晚上之后。”
我们很多人会在周六日关掉闹钟。但工作日一开始，我们就会立刻回到拼命工作的状态。